JPH10104685A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera constituted so that a photograph is prevented from being the photograph with much image blurring even in a desired photographing mode based on the holding state of the camera. SOLUTION: The camera is constituted of a supporting state detection part 109 detecting the holding state of the camera, an input operation part 104 setting the longest exposure time to a long time side and a control part 101 automatically changing, the longest exposure time. By the control part 101, a shutter part 106 is set to the first longest exposure time(t0 ) at a normal photographing time. Then, when the longest exposure time is set to the long time side by the operation part 104 without detecting the holding state by the detection part 109, the shutter part 106 is set to the second longest exposure time(t2 ) being longer than the first longest exposure time. When the holding state is detected by the detection part 109 and the longest exposure time is set to the long time side by the operation part 104, the shutter part 106 is set to the third longest exposure time(t1 ) being longer than the first longest exposure time and shorter than the second longest exposure time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of automatically changing a shutter speed range to prevent camera shake.

[0002]

2. Description of the Related Art In recent camera technology, there has been provided a camera capable of selecting various shooting modes set in advance so that optimum shooting can be performed according to the situation of a subject. For example, when the “night scene mode” for capturing a distant night view is selected, the “longest second” as the shutter speed of the camera is longer than when the above “night scene mode” is not selected. It switches to the "time" side, allowing you to take beautiful pictures even in low-brightness night views. Also, JP-A-63-2
The camera taught by Japanese Patent No. 98228 has a detection switch provided on the lower surface of the camera main body, which can detect whether the camera is mounted on a fixing means such as a tripod, and based on the output of the detection switch. The second shutter speed is automatically changed to a longer time.

[0003]

However, as a problem of the above-mentioned prior art, the shutter speed in the so-called "night scene mode" has a large blur in the usual "hand-held shooting" without using a tripod or the like. It becomes a photograph. In addition, if the detection switch is on the lower surface of the camera, if the user touches the lower surface when holding the camera, the detection switch may be erroneously input, and as a result, the shutter speed may be changed to an unintended long shutter speed. The result is a photograph with camera shake. SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera that prevents a blurred photograph even in a desired shooting mode based on a state in which the camera is held.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and has taken the following means to solve the problem and achieve the object. That is,
When the camera is fixed or placed on a stable object, the shutter speed is slowed down for a long time, but otherwise the camera is set so that the exposure is terminated in a short time that does not cause camera shake. It is configured to change the setting at the maximum time.

Specifically, [1] a supporting state detecting means for detecting a state in which the camera is held, and according to an output of the supporting state detecting means,
And a shutter control means for changing the longest exposure time. [2] A photographing mode in which photographing is started at least by receiving a signal from a remote controller (hereinafter, referred to as a remote controller mode)
And a shutter control means for increasing the longest exposure time when the remote control mode is selected by the shooting mode switching operation means.
And a camera having the following. [3] Support state detecting means for detecting a state in which the camera is gripped, long time switching input means for setting the longest exposure time to a longer time side, and automatically detecting the longest exposure time. Shutter control means for changing the shutter control means, wherein the shutter control means sets the first longest exposure time when the long time is not set by the long time switch input means, and sets the long time by the long time switch input means. When the holding state is not detected by the supporting state detecting means, the second longest exposure time is set to be longer than the first longest exposure time, and is set by the long time switching input means. The second longest exposure time, which is set at the time of seconds and is longer than the first longest exposure time and shorter than the second longest exposure time, when the holding state is detected by the support state detecting means. Sometimes set And a camera characterized by the following.

[4] Supporting state detecting means for detecting a state in which the camera is gripped, photographing mode switching operation means for selecting a strobe off mode for inhibiting strobe light emission, and automatically setting a longest exposure time. Shutter control means for changing the first longest exposure second when the flash mode is not selected by the photographing mode switching operation means, and setting the strobe off by the photographing mode switching operation means. Mode is selected,
When the holding state is not detected by the supporting state detecting means, the second state which is longer than the first longest exposure time is used.
When the strobe off mode is selected by the photographing mode switching operation means and the holding state is detected by the support state detecting means,
A camera is provided which is set to a third longest exposure time longer than the first longest exposure time and shorter than the second longest exposure time.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera according to the present invention will be described with reference to a plurality of embodiments. (First Embodiment) FIG. 1 shows a configuration of a camera according to first and second embodiments of the present invention. As shown, the camera is composed of the following components. That is, a control unit 101 that controls the operation of the entire camera, an AF (autofocus) unit 102 that performs distance measurement, a photometry unit 103 that performs photometry, a first release SW (R1SW) and a second release SW (R2SW). Input section 104 of various switches including a switch for selecting a scene and a night scene mode, a winding / rewinding section 105 for winding and rewinding a film, a shutter section 106 for focusing and exposure, and a strobe section 107
And a display unit 108 for performing various displays, and a support state detection unit 109 for detecting a support state of the camera.

Each of these components 102 to 109 is connected to a control unit 101, and exchanges necessary signals and information based on a predetermined control signal from the control unit, thereby performing distance measurement, photometry, exposure, Film feeding and
It is controlled to perform a predetermined operation such as display. The control performed by the control unit 101 is executed based on processing steps of a predetermined program that defines a procedure as shown in FIG. That is, in the camera having the above-described configuration, the operation control according to the first embodiment is executed according to the following procedure.

First, it is checked whether or not the first release switch R1SW has been operated and turned on (S01). If the first release switch R1SW has not been operated yet and is in the OFF state, the process is terminated without doing anything. In step S01, the first release switch R
If 1SW is ON, the process proceeds to step S02, in which "AF (autofocus)" is performed, "AF calculation" is performed from the output (S03), and the result is converted into a lens extension amount.

Next, "photometry" is performed (S04), "photometry calculation" is performed using the output (S05), and the shutter time as the exposure time is determined. Next, it is determined whether or not the shutter time determined in step S05 is longer than a preset time t0 (S07).
If the determined shutter time is longer than t0, the flow advances to step S08 to check the state of the "grasping SW". If shorter than t0, the flow advances to step S10.
Proceed to.

Here, the grip SW of step S08 will be described. The perspective view schematically shown in FIG. 3 is the appearance of the camera of the present invention. A finger pad 2 made of an elastic material is attached to the right front portion of the outer cover 1 of the camera, and is fixed to the outer cover 1 by bonding or the like. The outer cover 1 has at least one opening 1a at a position covered by the finger pad 2 at a position where the fingertip of the photographer is just positioned when the camera is gripped.

An opening 103 including a finder covered with a transparent cover and a flash window 107 for flash photography are provided above the lens. On the other hand, on the upper surface of this camera, in addition to the release SW, a perspective switch for selectively instructing the distance to the subject, an LCD panel for display, and a first mode for switching a shooting mode including a "night view mode" are provided. A mode switching SW and a second mode switching SW are provided.

When the above-mentioned "night scene mode" is selected by the mode switching SW 104, a distant night scene can be photographed by exposure for a predetermined long second time. At this time, when the opening 1a of the finger pad 2 made of an elastic material as described above is pressed, it is understood that the finger is held by the hand.
The time is changed so that shooting is performed at a predetermined long shutter speed that can prevent failure due to camera shake even with the gripping.

FIGS. 4 and 5 show the above-described opening 1.
FIG. 4 shows a state where the camera is not gripped, while FIG. 5 shows a state where the finger rest is deformed when the camera is gripped. The dome-shaped thin plate 3 fixed to the holding member 4 is located in the opening 1a. The holding member 4 is fixed to the outer cover 1 with screws 6. Thin plate 3
Is made of a conductive member such as metal or rubber which has been subjected to a conductive treatment. When an external force is applied by a finger as shown in FIG. 5, the thin plate 3 is displaced by bending through the finger pad 2, and as shown in FIG. Is restored to the original state. A substrate 5 is fixed to the holding member 4 at a position facing the thin plate 3.

The substrate 5 is provided with a pattern as shown in FIG. An opening 7 is provided at a position corresponding to such a pattern, and the conductive patterns 8 and 9 are exposed in a “comb-like shape” as shown in the figure. Normally, these conductive patterns 8 and 9 are in an insulated state as shown in FIG. On the other hand, when the camera is grasped by the photographer's hand, the thin plate 3 is deflected via the finger pad 2 by the pressing force of the finger as shown by the arrow in FIG. The conductive patterns 8 and 9 exposed on the surface are short-circuited through the thin plate 3.

As described above, since the state of the conductive patterns 8 and 9 changes depending on the presence or absence of the grip, the presence or absence of the grip, that is, the state in which the camera is supported can be detected. Subsequently, in step S08 in FIG. 2, if the grip SW is ON, the shutter time determined in step S05 is changed to t0 (S09), and the process proceeds to step S10. On the other hand, if the grip SW is OFF in step S08, the process proceeds to the next step S10. In step S10,
The “lens extension” operation is performed based on the lens extension determined in step S03 (S10).

Next, when the second release switch R2SW is
N is checked (S11), and if it is OFF, it is checked again whether the first release switch R1SW is ON (S12). If the first release switch R1SW is turned on, step S
Returning to step 11, the same check is performed. On the other hand, this R1
If the SW is OFF, the flow branches to step S15, where a "lens reset" operation (S15) for returning the lens to the initial position and a "strobe charge" (S16) are performed, and a series of processing ends.

If the second release switch R2SW is ON in step S11, "shutter control" is performed so as to perform exposure (S13), and "winding" of one frame of film is performed (S14). "Lens reset" the lens to the initial position (S15), and when the strobe fires, charge the main condenser with "strobe charge"
Then (S16), the series of processes described above ends.

(Function and Effect 1) As described above, the longest exposure time is changed in accordance with the output of the grip SW. It changes at the time of exposure to prevent camera shake, while when it is in a stable support state, such as when attached to a tripod, it changes automatically at the longest exposure time, so it is within the distance of the strobe light You can imprint on the background.

(Modification 1) In the first embodiment exemplified above, the grip SW provided in the finger rest of the camera is used as the support state detection means, but the support state for detecting the state of being gripped is used. The detecting means is not limited to the grip SW. For example, an optical sensor having a light emitting unit and a light receiving unit provided in a finder unit may be used to detect the state of being held by analogy based on the presence or absence of reflection by the eyes and face of the photographer. This is not limited to an optical sensor, but may be a sensor using ultrasonic waves or the like. Further, by providing a thermal sensor or a strain gauge in the finger rest, a state in which the camera is being gripped may be detected by detecting heat or strain generated by gripping by the photographer. Further, by providing a shake sensor for detecting camera shake, a state in which the camera is not gripped may be detected by detecting no shake for a predetermined time.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to a flowchart shown in FIG. However, the processing of steps S01 to S04,
That is, the process from the R1SW check to the “photometry” is the same as that in the first embodiment, and the description is omitted.

Subsequent to step S04, it is checked whether the mode selection is the "night scene mode" (S17). The “night scene mode” here is one of the shooting modes for performing a so-called “long exposure time” so that a background having low luminance and a distance beyond the strobe light, such as night scene shooting, can be captured. This mode can be selected by inputting a predetermined input operation switch which is a long-time switching input means for setting the longest exposure time to a longer time side. if,
If the mode is not the night view mode, the process proceeds to the subsequent step S19,
The longest shutter time is set to t0 (for example, the reciprocal of the focal length of the photographing lens), and the process proceeds to step S22.

On the other hand, if the mode is the night scene mode in step S17, the flow advances to step S18 to check whether or not the grip SW is ON (S18). If it is OFF, the longest shutter time is set to t2 (for example, 4 seconds) longer than t0 (S21), and the process proceeds to step S22.
On the other hand, if the grip SW is ON, the longest shutter time is set to be longer than t0 and shorter than t2 (for example, 2 seconds) (S20), and the process proceeds to step S22.

In step S22, the output of "photometry" in step S04 is used, and
After determining the shutter time within the longest shutter time set in any one of 19 to S21 (S22), the process proceeds to step S10 similar to the above-described first embodiment. Since this step, “lens extension” (S10) to “strobe charge” (S16), is the same as in the first embodiment, the description thereof will be omitted. (Function and Effect 2) As described above, in the shooting mode in which the long-time exposure is performed, such as the “night scene mode”, the longest shutter time is automatically set to a speed at which camera shake is difficult according to the output of the grip SW. As it was improved to change, while preventing failure due to camera shake like before,
Backgrounds that are out of reach of the strobe light can be well captured.

(Modification 2) The longest shutter speed value automatically set in the night view mode may be determined in consideration of the film sensitivity information used, or
If the exposure is still insufficient, the setting may be such that the shutter can be opened as desired.

(Third Embodiment) Next, a camera according to a third embodiment of the present invention will be described. The configuration of the camera according to the present embodiment is a simpler configuration excluding the support state detection unit 109 illustrated in FIG. 1 in the first and second embodiments. Therefore, the configuration diagram is omitted here, and the configuration description is also omitted because it is the same as the configuration description of the first embodiment.

The feature of the third embodiment according to the present invention lies in the operation of the flowchart shown in FIG. That is, in the first step S23, it is checked whether or not the "remote control mode" is set. The “remote control mode” here means a so-called “remote release shooting mode” in which a signal is received from a remote controller to start shooting, and when the remote control mode is set by the input operation unit 104 in FIG. The camera is capable of receiving a signal from the remote controller, and performs a predetermined process (mainly an operation of opening a shutter) based on the signal.

If the mode is not the remote control mode in step S23, it is determined that the mode is the normal shooting mode, and the operation is performed in the following procedure. Check R1SW (S01), and if
If F, the process ends. On the other hand, if the R1SW is ON, in the following steps S02 to S04, "AF", "AF calculation", and "photometry", which are the same as in the first embodiment, are sequentially executed.

Next, the longest shutter time is set to t0 (for example, the reciprocal of the focal length of the photographing lens) (S3).
5) Within this shutter time, the "photometric operation" is performed using the output of "photometry" in step S04 to determine the shutter time (S36).

Subsequently, a "lens extension" operation is performed (S
10) In subsequent steps S11 to S16, "shutter control", "winding up", "lens reset", and "strobe charge" are sequentially executed in the same manner as in the first embodiment, and
A series of processes in the so-called “non-remote control mode” ends.

On the other hand, in step S23,
In the case of the “remote control mode”, the operation is controlled in the following procedure. It is monitored whether or not a release signal has been input from the remote controller (S24).
Return to 23. If there is an input from the remote controller of the release signal, "AF" is performed (S25), and "AF calculation" is performed based on the output (S26), and the result is converted into a lens extension amount.

Next, "photometry" is performed (S27). Subsequently, the longest shutter time is set to t2 longer than t0 (for example, 4 seconds).
Second) (S28), and within this shutter time, a predetermined "photometric operation" is performed using the photometric output in step S27 to determine the shutter time (S29).

Next, the "lens extension" operation is performed according to the lens extension amount determined in step S26 (S30), and "shutter control" is performed to expose at this time (S31). "Winding" (S3
2) Then, "reset" the lens to the initial position (S
33) At the time of strobe light emission, "strobe charge" is performed to give a charge to the main capacitor (S34).
A series of processes in the “remote control mode” is ended.

(Effect 3) When photographing in the remote control mode, the camera is often in a stable supporting state, for example, by mounting the camera on a tripod or mounting the camera on a table. Thus, in the case of the remote control mode, the longest shutter time of the camera can be set longer than in the normal shooting mode. Therefore, when the remote control mode is selected by the user,
By automatically changing the second time,
In addition to preventing failure due to "camera shake" that occurs in the normal shooting mode, this remote control mode allows a long-time exposure of a long-distance background where strobe light does not reach.

(Modification 3) The longest shutter time automatically set in this remote control mode may be determined in consideration of the film sensitivity information used for the camera, and the exposure is still possible. If not, the setting may be such that the shutter can be opened as desired.

(Fourth Embodiment) Next, a camera according to a fourth embodiment of the present invention will be described. FIG. 9 is a flowchart showing a characteristic operation control procedure according to the fourth embodiment. This is an embodiment that can support a combination of the “remote control mode” and the “night scene mode”. The configuration of the camera according to the present embodiment is similar to that of the above-described third embodiment.
Since the configuration does not include the support state detection unit 109 in FIG. 1, the configuration diagram and description of the configuration are omitted, and only the features of the operation shown in FIG. 9 will be described below.

First, it is checked whether or not the operation from the input operation unit 104 in FIG. 1 is in the "remote control mode" (S23). If not, the normal photographing mode is determined and the R1SW is checked. (S01) If it is OFF, the process is terminated as it is, but if this R1SW is ON, "AF" is performed in the following steps S02 to S04.
After the “AF calculation” and “photometry” are sequentially performed, the longest shutter time is set to t0 (S35), and the “photometry calculation” (S3
6), "Lens extension" (S10) and release R2
The switch operation determination (S11) and the release R1SW operation determination (S12) are performed in the same manner as in the third embodiment. If the release is not operated, "lens reset" (S33) and "strobe charge" (S34) are sequentially executed, and a series of processes in the so-called "non-remote control mode" is ended. When the R2SW is operated, "shutter control" (S31) and "winding up" (S32) are performed in the same manner as in the above-described embodiment, and the above-described "lens reset" and "strobe charge" are sequentially performed. This ends the series of processes in the non-remote control mode.

On the other hand, if the "remote control mode" is determined in step S23, it is monitored whether or not a release signal has been input from the remote control as in the third embodiment (S24). If there is no input, the process returns to step S23 again. If there is an input of the release signal from the remote controller, "AF", "AF calculation", and "photometry" are sequentially executed in subsequent steps S25 to S27.

Next, it is determined whether or not the camera is in the "night scene mode" (S40). If it is not the night scene mode, the longest shutter time is set to t1 longer than t0 (S41). The second time is set to t2 longer than t1 (S42). Then, within this shutter time, a predetermined "photometric operation" is performed using the photometric output in step S27 to determine the shutter time (S43). ). Subsequently, steps S30 to S3 are performed similarly to the third embodiment.
In step 4, “Lens extension” and “Shutter control”
The “winding up”, “lens reset”, and “strobe charging” are performed, and a series of processing in the “remote control mode” ends.

(Effect 4) As described above, when the remote control mode is selected, the camera is often in a stable supporting state, so that long-time exposure such as "night view mode" is further performed here. When the shooting mode is selected,
By automatically extending the longest shutter time, a night scene can be clearly photographed.

(Fifth Embodiment) Next, a camera according to a fifth embodiment of the present invention will be described. FIG.
The procedure of the operation control according to the embodiment is shown in a flowchart. This is an embodiment corresponding to a combination of the "strobe off mode" and the grip switch. The “strobe off mode” here is a shooting mode in which strobe light emission is forcibly prohibited, and can be selected by the input operation unit 104 shown in FIG. It is used in places where flash photography is prohibited, or when you want to take advantage of the mood at that location.

The configuration of the camera of this embodiment is similar to that of the second embodiment described above, and is similar to that of the second embodiment described above.
9, the description of the configuration is omitted, and only the features of the operation shown in FIG. 10 are described below. That is, steps S01 to S04 and steps S10 to S10
S16 is equivalent to the operation control of the second embodiment described above,
This embodiment is characterized in that in step S50 following "photometry" in step S04, it is determined whether or not the operation of the predetermined switch of the input operation unit is in the "strobe off mode".

According to the result of this determination (S50), if the mode is not the "strobe off mode", the following step S5
The process proceeds to step 1, where the longest shutter time is set to t0 (for example, the reciprocal of the focal length of the taking lens) (S51), and the process proceeds to step S22. On the other hand, in the case of the “strobe off mode” in the determination in step S50, in step S52,
It is checked whether the grip SW is ON (S52). if,
If the grip SW is OFF, the longest shutter time is set to t.
T2 (for example, 4 seconds) longer than 0 is set (S54), and the process proceeds to step S22. If the grip SW is ON, the longest shutter time is set to be longer than t0 and t1 (for example, 2 seconds) shorter than t2 (S53), and step S53 is executed.
Proceed to 22.

In the subsequent step S22, a predetermined "photometric operation" is performed using the photometric output in step S04 within the set shutter time to determine the shutter time (S22). Thereafter, similarly to the above-described second embodiment, steps S10 to S16 are sequentially executed as illustrated, and a series of processes is completed.

(Function / Effect 5) In the case of photographing by emitting a strobe, the exposure is performed in a much shorter shutter time than in the photographing without the strobe. Therefore, there is almost no failure due to camera shake. However, when the "strobe off mode" is selected, a relatively long shutter time is set, so that the grip S
The fact that the longest shutter time can be changed based on the output of W is particularly effective when shooting without firing a strobe.

(Sixth Embodiment) A camera according to a sixth embodiment of the present invention will be described. FIG. 11 is a flowchart illustrating a procedure of the operation control according to the sixth embodiment. This is an embodiment corresponding to a combination of the “remote control mode” and the “strobe off mode”. Note that the configuration of the camera of the present embodiment is
As in the fourth embodiment, the support state detection unit 109 in FIG.
Therefore, the configuration diagram and description of the configuration are omitted, and only the features of the operation control shown in FIG. 11 will be described below.

The flowchart of FIG. 11 showing the sixth embodiment is very similar to the flowchart of FIG. 9 showing the above-described fourth embodiment except for step S60. That is, in the operation control according to the fourth embodiment, step S4
0, it is determined whether the mode is the “night view mode”. Instead, in the operation control of the sixth embodiment, it is determined whether the mode is the “strobe off mode” described above. Recognize. That is, in the operation control of the sixth embodiment, it is determined whether or not the “remote control mode” is performed in the first step S23, and it is further determined whether or not the “strobe off mode” is performed in the step S50. In S62, the predetermined longest shutter time t1 or t1
After 2 is set, in the following step S63, a predetermined "photometric operation" is performed using the photometric output in step S27 within the set shutter time to determine the shutter time (S63). After that, the above-mentioned second and fourth
As in the embodiment, steps S30 to S34 are sequentially executed as shown in the drawing, and a series of processes is completed. That is, control is performed not only in the “remote control mode” but also in a combination of the “strobe off mode”.

(Function / Effect 6) As described above, when the remote control mode is selected, the camera is often in a stable supporting state. When a shooting mode in which compulsory prohibition is selected, the longest shutter time is automatically set to be longer, thereby making it possible to shoot with the mood of the spot.

(Other Modifications) The position where the grip SW corresponding to the support state detection unit is provided is not limited to the right side of the front of the camera illustrated in FIG. Any position may be provided as long as the photographer holds the camera during photographing. In addition, the function of the support state detection unit may also be performed by a release switch. further,
The release operation may be prohibited in a situation where the blur increases, or the user may be warned in advance that the blur will increase. In addition, various modifications can be made without departing from the spirit of the present invention.

As described above, the present invention includes the following inventions. [1] A supporting state detecting means for detecting a state in which the camera is held, and according to an output of the supporting state detecting means,
A shutter control means for changing a longest exposure time. With this, a supporting state detecting means for detecting whether or not the camera is gripped is provided, and the maximum exposure time is automatically changed according to the output thereof. Even in a stable case, a failure such as a camera shake photograph can be prevented. In detail, the camera's support state is detected, and when the camera is in a stable support state, the longest shutter time is automatically changed to a longer time side than normal during hand-held shooting etc. This allows you to capture distant backgrounds where strobe light cannot reach. On the other hand, when the support state is not stable, the shutter is set to the normal longest shutter time, so that no failure due to camera shake occurs. In addition, the switching of the longest shutter time of the camera as described above does not require a special operation member, so that the configuration of the camera is not complicated and the cost is not increased. In addition, since there is no need to increase the number of special operation members, the operability is not complicated.

[2] A photographing mode switching operation means capable of selecting a photographing mode (remote control mode) for starting photographing at least by receiving a signal from a remote control, and a case where the remote control mode is selected by the photographing mode switching operation means A shutter control means for lengthening the longest exposure time. In particular, in a remote control shooting mode using a remote control, that is, in a “remote control mode”, the camera is mounted on a tripod or mounted on a stable table, and is used under shooting conditions where camera shake is unlikely to occur. In consideration of this, when shooting with the selected remote control mode, the longest exposure time is set longer than normal shooting (such as handheld shooting), and this long exposure exposes low-luminance background. Can be included.

[3] A support state detecting means for detecting a state in which the camera is held, a long time switching input means for setting the longest exposure time to a longer time side, and a longest exposure time. Automatically changing shutter control means, wherein the shutter control means sets the first longest exposure second when the long time is not set by the long time switching input means, and the long time switching input means Is set for long seconds by
When the holding state is not detected by the supporting state detecting means, the second longest exposure time is set to be longer than the first longest exposure time, and is set to the longest time by the long time switching input means. When the holding state is detected by the supporting state detecting means, the third longest exposure time is set to be longer than the first longest exposure time and shorter than the second longest exposure time. A camera characterized by the following. Thus, a supporting state detecting means for detecting whether or not the camera is gripped is provided, and the maximum exposure time is automatically changed in accordance with the output of the supporting state detecting means. Even in a stable case, a failure such as a camera shake photograph can be prevented. More specifically, as in the first aspect, the support state of the camera is detected, and when the camera is in a stable support state, the longest shutter time is automatically changed to a longer time side than a normal time such as hand-held shooting. With this long exposure time, a background at a long distance where strobe light does not reach can be printed. On the other hand, when this support state is not stable,
Since this is set at the normal longest shutter time, no failure occurs due to camera shake. In addition, the switching of the longest shutter time of the camera as described above does not require a special operation member, so that the configuration of the camera is not complicated and the cost is not increased. In addition, since there is no need to increase the number of special operation members, the operability is not complicated.

[4] Supporting state detecting means for detecting a state in which the camera is held, photographing mode switching operation means for selecting a strobe off mode for inhibiting strobe light emission, and automatically setting the longest exposure time. Shutter control means for changing the first longest exposure second when the strobe-off mode is not selected by the photographing mode switching operation means, and setting the strobe off mode by the photographing mode switching operation means. Is selected, and when the holding state is not detected by the support state detecting means, the second longest exposure time is set to be longer than the first longest exposure time, and the flash is turned off by the photographing mode switching operation means. Mode is selected, and when the holding state is detected by the support state detecting means, the first longest exposure second A camera which is set to a third longest exposure second which is longer than an hour and shorter than the second longest exposure second. Accordingly, it is possible to cope with a combination of the “strobe off mode” and a grip switch capable of detecting a support state of the camera. In other words, when taking a picture with a flash, the camera will be exposed at a much shorter shutter speed than when shooting without a flash, so it is extremely unlikely to fail due to camera shake. When the “strobe off mode” forcibly forbidden is selected, a relatively long shutter time is set, and the longest shutter time is appropriately changed based on the output of the grip SW. This is effective when you want to take advantage of the location and the mood of the place and shoot without flash emission.

In addition, the following inventions are also included. (1) Support state detecting means for detecting a state in which the camera is held by the photographer, and a shutter control circuit for automatically changing the longest exposure time according to the output of the support state detecting means. A camera characterized in that: (2) The camera according to (1), wherein when the supporting state detecting means does not detect the holding state of the camera, the longest exposure time is set longer than when the detecting state is detected. (3) The camera according to (1), wherein the support state detecting means is provided on a grip portion for gripping by hand. (4) The camera according to (1), wherein the support state detecting means is provided in a finder section. (5) a shooting mode switching operation member for selectively switching a plurality of shooting modes, a shutter control circuit for automatically changing the longest exposure time in accordance with the shooting mode selected by the shooting mode switching operation member, A camera comprising:

(6) A photographing mode switching operation member for setting a photographing mode by a remote controller (hereinafter, referred to as a “remote controller mode”), and a shutter control circuit for automatically changing a longest exposure time. A camera characterized in that when the remote control mode is set by a mode switching operation member, the remote control mode is changed to the longest exposure time different from the longest exposure time in normal shooting. (7) The camera according to (6), wherein when the remote control mode is set by the shooting mode switching operation member, the longest exposure time is set longer than when the remote control mode is not set.

(8) a photographing mode switching operation member for setting a mode for photographing a night scene (hereinafter, referred to as a “night scene mode”);
A shutter control circuit for automatically changing the longest exposure time,
A camera, wherein when the night view mode is set by the shooting mode switching operation member, the exposure time is changed to the longest exposure time which is different from the longest exposure time in normal hand-held shooting.

(9) The camera according to [1], wherein the support state detecting means is a grip switch provided on a finger pad of the camera. (10) The support state detecting means is a thermal sensor or a strain gauge provided on a finger pad of the camera, and the camera is gripped by detecting heat conduction or strain generated when the photographer grips the camera. The camera according to [1], wherein the camera detects a state in which the camera is in a moving state. (11) The finder section is provided with an optical sensor or an ultrasonic sensor having a light-emitting section and a light-receiving section, and detects a state of being held by the presence or absence of reflection by the photographer's eyes and face. The camera according to (4). (12) The longest shutter time automatically set in the remote control mode or the night view mode is determined in consideration of film sensitivity information to be used, according to (6) or (8). camera. (13) The camera according to (8), wherein in the night view mode, when exposure is insufficient, a shutter can be opened as desired. (14) The first longest exposure time is reciprocal seconds of the focal length of the taking lens of the camera, the second longest exposure time is 4 seconds, and the third longest exposure time is The camera according to [3], wherein the time is 2 seconds.

(15) A photographing mode switching operation means for selecting a photographing mode in which photographing is started at least in response to a signal from a remote controller, and a long time switching input for setting the longest exposure time to a longer time side Means and a shutter control means for automatically changing the longest exposure time, wherein the shutter control means sets the first longest exposure time when the remote control mode is not selected by the shooting mode switching operation means. When the remote control mode is selected by the shooting mode switching operation means and the long time is set by the long time switching input means, the second longest exposure time is set longer than the first longest exposure time. When the remote control mode is selected by the photographing mode switching operation means and the long time is not set by the long time switching input means, the first longest exposure second is set. A camera which is set to a third longest exposure second which is longer than an hour and shorter than the second longest exposure second.

(16) First photographing mode switching operation means capable of selecting a photographing mode for starting photographing in response to at least a signal from a remote controller, and a second photographing mode for selecting a strobe off mode for inhibiting strobe light emission. Switching operation means, and shutter control means for automatically changing the longest exposure time, wherein the shutter control means is configured to switch to the first shooting mode switching operation means when the remote control mode is not selected. When the remote control mode is selected by the first photographing mode switching operation means and the flash-off mode is set by the second photographing mode switching operation means, the first longest exposure time is set. The remote control mode is set by the first photographing mode switching operation means, and the second remote control mode is selected. When the longest exposure time is not set by the shooting mode switching operation means, the third longest exposure time is set longer than the first longest exposure time and shorter than the second longest exposure time. Camera.

[0060]

As described above, when the longest exposure time t0 at the time of ordinary handheld photographing is set to the reciprocal seconds of the focal length of the photographing lens of the camera, and the camera is stably fixed or mounted, The longest shutter speed is extended to the longest time t2 (i.e., the second longest exposure time: for example, 4 seconds), but otherwise, an appropriately short time t1 (i.e., the second Exposure is set to stop at the longest exposure time of 3 (for example, 2 seconds). Therefore, according to the camera of the present invention, it is possible to provide a camera capable of preventing a blurred photograph by appropriately changing the exposure time even in a desired photographing mode based on a state in which the camera is held.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a camera according to first and second embodiments of the present invention.

FIG. 2 is an exemplary flowchart illustrating a procedure of operation control according to the first embodiment;

FIG. 3 is a perspective view schematically showing an appearance of a camera according to the present invention.

FIG. 4 is a sectional view showing an opening portion in a state where the camera is not gripped.

FIG. 5 is a cross-sectional view illustrating a state where a finger pad is deformed when the camera is gripped and a grip SW is turned on.

FIG. 6 is an explanatory view showing a conductive pattern formed on a substrate and an opening thereof.

FIG. 7 is an exemplary flowchart illustrating a procedure of operation control according to the second embodiment;

FIG. 8 is a flowchart illustrating a procedure of operation control according to a third embodiment;

FIG. 9 is a flowchart illustrating a procedure of an operation control according to a fourth embodiment;

FIG. 10 is a flowchart illustrating a procedure of operation control according to a fifth embodiment;

FIG. 11 is a flowchart illustrating a procedure of operation control according to a sixth embodiment;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer cover (camera body), 1a ... Opening, 2 ... Finger contact (with a grip SW), 3 ... Thin plate, 4 ... Holding member, 5 ... Board (with conductive pattern), 6 ... Screw, 7 ... Pattern opening 8, 9, conductive pattern, 101, control unit (shutter control means (CPU including program)), 102, AF unit, 103, photometry unit, 104, input operation unit (shooting mode switching operation means, long time Switching input means), 105: winding / rewinding section, 106: shutter section (shutter control means (mechanism)), 107: strobe section, 108: display section, 109: support state detection section (gripping SW).

Claims (4)

[Claims] 1. A device according to claim 1, further comprising: a supporting state detecting means for detecting a state in which the camera is held; and a shutter controlling means for changing a longest exposure time according to an output of the supporting state detecting means. And the camera. 2. A photographing mode switching operation means capable of selecting a remote control mode for starting photographing at least by receiving a signal from a remote controller, and a longest exposure when the remote control mode is selected by the photographing mode switching operation means. A camera, comprising: shutter control means for increasing the time in seconds. 3. A supporting state detecting means for detecting a state in which the camera is held, a long time switching input means for setting the longest exposure time to a longer time side, and automatically detecting the longest exposure time. Shutter control means for dynamically changing
The shutter control means sets the first longest exposure second when the long time is not set by the long time switching input means; sets the longest exposure time by the long time switching input means; When the gripping state is not detected by the state detecting means, the second longest exposure time is set to be longer than the first longest exposure time, and is set to the longest time by the long time switching input means. When the holding state is detected by the supporting state detecting means, the third longest exposure time is set to be longer than the first longest exposure time and shorter than the second longest exposure time. And the camera. 4. A supporting state detecting means for detecting a state in which the camera is held, a photographing mode switching operation means for selecting a strobe off mode for inhibiting strobe light emission, and automatically changing a longest exposure time. Shutter control means;
Wherein the shutter control means sets a first longest exposure second when the strobe-off mode is not selected by the shooting mode switching operation means, and the strobe-off mode is selected by the shooting mode switching operation means; When the holding state is not detected by the supporting state detecting means, a second longest exposure time longer than the first longest exposure time is set, and a strobe off mode is selected by the shooting mode switching operation means. When the holding state is detected by the supporting state detecting means, the third longest exposure time is set to be longer than the first longest exposure time and shorter than the second longest exposure time. Features camera.