JP2000347275A - Camera having trimming zoom function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an object from going out of a print even when the object is moving. SOLUTION: In a camera having a trimming zoom function to obtain a pseudo-zoom effect by trimming a specified area within a pick-up image, the camera is set to a mode executing trimming zoom by a trimming zoom switching part 16. And during operation of a trimming zooming mode when an object moves from a frame of trimming zoom displayed by a display part 6 of the frame of the trimming zoom to the outside of the frame, a setting of the trimming zoom mode by the trimming zoom switching part 16 is cancelled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a camera having a trimming zoom function, and more particularly to a camera having a trimming zoom function capable of performing control according to the movement of a subject.

[0002]

2. Description of the Related Art Conventionally, the movement of a subject in the front-rear direction is determined by sequentially measuring the subject distance, and the movement of the subject in the vertical and horizontal directions is determined by successively comparing the subject distances of a plurality of distance measuring means. Various cameras have been proposed.

Also, various cameras having a so-called trimming zoom function have been proposed in which a pseudo zoom effect is obtained by trimming only a specific area in a photographing screen and recording information for printing on a film. ing. The trimming zoom does not optically change the focal length of the taking lens. Therefore, when the trimming zoom is turned on, it is only necessary to display the print magnification and the range by the trimming zoom on the finder.

[0004]

By the way, when the subject is moving, for example, when the camera is fixed on a tripod and the subject cannot be tracked completely, or when the subject moves too fast, the photographer cannot move the subject. If tracking is not completed, the subject may be out of print. Such a phenomenon becomes more prominent when the focal length of the taking lens is long or when the trimming zoom function is turned on, because the apparent subject speed increases.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a camera having a trimming zoom function in which a subject does not deviate from a print even when the subject is moving.

[0006]

Means for Solving the Problems That is, the first invention is:
In a camera having a trimming zoom function that obtains a pseudo zoom effect by trimming a specific area in a shooting screen and recording information on the trimming used for printing a photograph on a film, the camera performs the trimming zoom. A trimming zoom mode setting means for setting a mode, wherein when the subject moves from within the trimmed specific area to outside the specific area, canceling the setting of the trimming zoom mode by the trimming zoom mode setting means is provided. Features.

According to a second aspect of the present invention, there is provided a trimming zoom function for trimming a specific area in a photographing screen and recording a pseudo-zooming effect by recording information on the trimming used for photo printing in an information recording section of the film. In the camera having, the trimming zoom mode setting means for setting the camera to the mode for performing the trimming zoom, a plurality of distance measuring means for measuring the subject distance, based on the distance measurement results of the plurality of distance measuring means, A moving body determining unit that determines whether the subject is moving; and a selecting unit that selects a distance measuring unit that measures a subject distance of a desired subject from among the plurality of distance measuring units. When the mode setting means is set, the moving body determining means determines that the subject is moving,
When the selecting means does not select any of the plurality of distance measuring means, the setting of the trimming zoom mode by the trimming zoom mode setting means is canceled.

According to the first aspect of the present invention, a trimming zoom function is provided for trimming a specific area in a photographing screen and recording a pseudo-zooming effect by recording information on the trimming used for photo printing on a film. In the camera, a mode in which the camera performs the trimming zoom is set by the trimming zoom mode setting means. When the subject moves from the inside of the trimmed specific area to the outside of the specific area during the operation of the trimming zoom mode, the setting of the trimming zoom mode by the trimming zoom mode setting means is canceled.

According to the second aspect of the present invention, a pseudo area zooming effect is obtained by trimming a specific area in a photographing screen and recording information on the trimming used at the time of photo printing in an information recording section of the film. In a camera having a trimming zoom function to be obtained, a mode in which the camera performs the trimming zoom is set by the trimming zoom mode setting means. The subject distance is measured by a plurality of distance measuring means. Then, based on the distance measurement results of the plurality of distance measuring means, it is determined by the moving object determining means whether or not the subject is moving. Further, of the plurality of distance measuring means, the distance measuring means which measures the subject distance of a desired subject is selected by the selecting means. Here, when the trimming zoom mode setting means is set, the moving body determining means determines that the subject is moving, and the selecting means does not select any of the plurality of distance measuring means. The setting of the trimming zoom mode by the trimming zoom mode setting means is released.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention and is a block diagram showing a configuration of a main part of a camera having a trimming zoom function.

In FIG. 1, a control section 1 controls the entire camera, and is constituted by a CPU. The control unit 1 includes a plurality of distance measuring units 2LL, 2L, 2C, 2
R, 2RR, a selection unit 3, a determination unit 4, and a finder 5
Are connected to a trimming frame display section 6, a photometry section 8, a focusing section 9, a trimming frame recording section 11, a film feeding section 12, a release switch 15, and a trimming zoom switching section 16.

The plurality of distance measuring units 2LL, 2L, 2C, 2
As will be described later in detail, R and 2RR have a plurality of, in this case, five ranging points corresponding to the shooting screen. In this case, a distance measuring unit 2C is located at the center of the shooting screen, a distance measuring unit 2L is located on the left side, a distance measuring unit 2LL is located on the left side, a distance measuring unit 2R is located on the right side of the distance measuring unit 2C, and a distance measuring unit is located on the right side. The distance is measured at 2RR, and the distance to the subject at each distance measurement point is measured.

The selection section 3 includes the five distance measurement sections 2 described above.
This is for selecting a distance measuring unit in which the subject exists from LL, 2L, 2C, 2R, and 2RR. The determination unit 4 determines whether the subject is moving, that is, whether the subject is a moving object.

The finder 5 represents a photographing screen, and the trimming frame display section 6 represents a range (frame) to be printed as a photograph in the photographing screen.

The photometric section 8 is for measuring the luminance of the subject, and the focusing section 9 is for moving the photographing lens 10 to focus on the subject.

The trimming frame recording section 11 records a range to be printed as a photograph on the film 13. The film feeding section 12 is for winding and rewinding the film 13 for feeding.

The release switch 15 comprises two switches, a first release switch 15A and a second release switch 15B. When the first release switch 15A is turned on, the distance measuring unit 2LL,
Distance measurement and photometry are performed by the 2L, 2C, 2R, 2RR, and photometry unit 8. Next, the second release switch 1
When 5B is turned on, the focusing section 9 and the taking lens 10 are operated to take a picture, and the film feeding section 12 winds up the film 13.

Further, the trimming zoom switching section 16
Is for switching the trimming zoom on and off.
When turned on, the trimming zoom function is activated, and when turned off, the trimming zoom function is released.

Next, referring to the flowchart of FIG.
The operation of the camera according to the present embodiment will be described.

When the battery is inserted into the camera, first, various information is initialized in step S1. Next, in step S2, it is determined whether or not the trimming by the trimming zoom switching unit 16 is turned on.

Here, if the trimming zoom switching section 16 is turned on, the flow shifts to step S3 to set the trimming zoom mode. Thus, the trimming zoom frame is displayed by the trimming frame display unit 6 in the viewfinder 5 in step S4.

FIG. 3 is a diagram showing an example of the photographing screen 20 in the viewfinder 5.

The five distance measuring points 21LL, 21L, 21C, 21R, and 21RR in the photographing screen 20 correspond to the five distance measuring units 2LL, 2L, 2C, 2R, and 2RR described above. And the ranging points 21L, 21C,
21R is arranged inside the trimming zoom frame 22, and the distance measurement points 21LL and 21RR are arranged outside the trimming zoom frame 22.

On the other hand, if the trimming zoom switching section 16 is turned off in step S2, the process shifts to step S5 to set the normal mode in which trimming zoom is not performed. Then, the trimming zoom frame 22 on the shooting screen 20 is turned off.

In step S7, it is determined whether or not the first release switch 15A is turned on. Here, if the first release switch 15A is not turned on, the process proceeds to step S21 to be described later. If the first release switch 15A is turned on, the process proceeds to step S8 and the distance to the subject is measured.

Next, in step S9, it is determined whether or not the current mode is the trimming zoom mode. If the trimming zoom mode is set in step S3, the mode is the trimming zoom mode. In steps S10 and S11, the determination unit 4 determines whether the subject is moving, that is, whether or not the subject is a moving body. Is done.

If it is determined that the subject is a moving object, it is determined in steps S12 and S13 whether the subject has deviated from the distance measuring unit in the specific area. The fact that the subject deviates from the distance measuring unit in the specific area means that the subject 23 is located in the specific area, that is, the distance measuring points 21L and 21L existing in the trimming zoom frame 22 in FIG.
C and 21R cannot be caught.

If there is no subject from the distance measuring section in the specific area, the flow shifts to step S14 to switch from the trimming zoom mode to the normal mode. afterwards,
Move to step S15.

On the other hand, if the trimming zoom mode is not set in the step S9, if the subject is determined not to be a moving object in the step S11, and if the subject exists in the specific area in the step S13, the process proceeds to the step S15. Move to

Then, in step S15, the state of the second release switch 15B is determined. Here, if the second release switch 15B is not turned on, the process proceeds to step S7, and the subsequent processing is repeated. On the other hand, if the second release switch 15B is turned on, a normal photographing operation after step S16 is performed.

In step S16, the focusing unit 9 moves the photographing lens 10 to the distance measured by the distance measuring units 2LL, 2L, 2C, 2R, and 2RR, and focuses.

Next, photometry is performed in step S17, and a photographing operation is performed in step S18. Then, in step S19, the trimming information is recorded on the film 13 by the trimming frame recording unit 11. In step S20, the film feeding section 12 winds the film 13 by one frame.

Finally, in step S21, when other camera controls such as zoom operation and date change are performed, the process shifts to step S2, and the subsequent processes are repeated.

Next, with reference to FIGS. 4 and 5, the moving subject and the flow of the photographing screen will be described.

FIG. 4 is a flowchart for explaining the operation of the camera in the trimming zoom mode, and FIG. 5 is a diagram showing the flow of a photographing screen in the trimming mode.

First, when the function of the trimming zoom mode is operated in step S31, in step S32,
As shown in FIG. 5A, it is confirmed that the subject 23 exists at the position of the left ranging point 21L. Next, in step S33, the subject 23 starts to move rightward in the shooting screen 20.

Then, in step S34, FIG.
As shown in (2), it is confirmed that the subject 23 exists at the positions of the left and center distance measurement points 21L and 21C.

Next, in step S35, as shown in FIG. 5C, the subject 23 is
It disappears from the position of L, and its existence is confirmed at the position of the center ranging point 21C. Further, in step S36,
As shown in FIG. 5D, the existence of the subject 23 is confirmed at the positions of the center ranging point 21C and the right ranging point 21R.

In step S37, as shown in FIG. 5 (e), the presence of the subject 23 is confirmed at the position of the right distance measurement point 21R, deviating from the position of the center distance measurement point 21C.

Further, at step S38, as shown in FIG.
Deviates from the position of R. Then, in step S39, the subject 23 is likely to come off the trimming zoom frame 22.

Here, since the camera is set to the trimming zoom mode, only the area within the trimming zoom frame 22 is printed as a photograph. Therefore, in a state where the subject 23 is likely to fall out of the trimming zoom frame 22 in step S39, the subject 23 may not be printed.

Therefore, in the next step S40, FIG.
As shown in (g), the trimming zoom mode is released, and the trimming zoom frame 22 is turned off from within the shooting screen 20. As a result, the range to be printed is switched from within the trimming zoom frame 22 to the entire shooting screen 20. Therefore, in step S41, the subject 23 falls within the shooting screen 20 and does not deviate from the print.

In the above-described embodiment, an example in which the subject moves from the left side to the right side in the photographing screen has been described, but the present invention is not limited to this.

Further, in the above-described embodiment, the plurality of distance measuring points and the distance measuring units are five, but the number is not limited to this, and any number may be used as long as the object can be determined as a moving object.

According to the above embodiment of the present invention,
The following configuration can be obtained.

(1) A camera having a trimming zoom function for obtaining a pseudo zoom effect by trimming a specific area in a photographing screen and recording information on the trimming used for printing a photograph in an information recording unit of the film. A trimming zoom mode setting means for setting the camera to a mode for performing the trimming zoom,
By comparing a plurality of distance measuring means for measuring the subject distance with the respective subject distance values measured by the plurality of distance measuring means, and sequentially checking the ranging means which measured substantially equal subject distance values, The trimming zoom mode, comprising: a moving object determining unit that determines whether a subject is moving; and a selecting unit that selects a distance measuring unit that measures a closest object distance value among the plurality of distance measuring units. When the setting means is set, the moving object determining means determines that the subject is moving, and when the selecting means does not select any of the plurality of distance measuring means, the trimming zoom mode setting is performed. A camera having a trimming zoom function, wherein the setting of the trimming zoom mode by means is canceled.

[0048]

As described above, according to the present invention, it is possible to provide a camera having a trimming zoom function in which a subject does not deviate from a print even when the subject is moving.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is a block diagram illustrating a configuration of a main part of a camera having a trimming zoom function.

FIG. 2 is a flowchart illustrating an operation of the camera according to the embodiment of the present invention.

FIG. 3 is a diagram showing an example of a photographing screen 20 in a viewfinder 5;

FIG. 4 is a flowchart illustrating an operation of the camera in a trimming zoom mode.

FIG. 5 is a diagram showing a flow of a shooting screen in a trimming mode.

[Explanation of symbols]

Reference Signs List 1 control unit, 2LL, 2L, 2C, 2R, 2RR distance measuring unit, 3 selecting unit, 4 judging unit, 5 viewfinder, 6 trimming frame display unit, 8 photometry unit, 9 focusing unit, 10 photographing lens, 11 trimming frame Recording section, 12 film feed section, 13 film, 15 release switch, 15A first release switch, 15B second release switch, 16 trimming zoom switching section, 20 shooting screen, 21LL, 21L, 21C, 21R, 21RR ranging point, 22 Trimming zoom frame, 23 subjects.

Claims (4)

[Claims] 1. Trimming a specific area in a shooting screen,
In a camera having a trimming zoom function for obtaining a pseudo zoom effect by recording information on the trimming used in photo printing on a film, a trimming zoom mode setting means for setting the camera to a mode for performing the trimming zoom is provided. A camera having a trimming zoom function, wherein the setting of the trimming zoom mode by the trimming zoom mode setting means is canceled when a subject moves from inside the trimmed specific area to outside the specific area. 2. Trimming a specific area in a shooting screen,
In a camera having a trimming zoom function for obtaining a pseudo zoom effect by recording information on the trimming used at the time of photo printing in an information recording unit of a film, a trimming zoom for setting the camera to a mode for performing the trimming zoom Mode setting means; a plurality of distance measuring means for measuring a subject distance; a moving object determining means for determining whether or not a subject is moving based on the distance measurement results of the plurality of distance measuring means; And selecting means for selecting a distance measuring means which measures a subject distance of a desired subject, wherein the moving object determination means moves the subject when the trimming zoom mode setting means is set. And if the selecting means does not select any of the plurality of distance measuring means, the trimming zoom Camera having a trimming zoom function, characterized in that unset trimming zoom mode by the mode setting means. 3. The determining means compares the object distance values measured by the plurality of distance measuring means, and sequentially checks the distance measuring means which have measured substantially equal object distance values, so that the object can be identified. The camera having a trimming zoom function according to claim 2, wherein it is determined whether or not the camera is moving. 4. A camera having a trimming zoom function according to claim 2, wherein said selecting means selects a distance measuring means which measures a closest object distance value among said plurality of distance measuring means. .