JP2002350710A - Automatic zooming camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic zooming camera constituted so that a time lag due to automatic zooming can be shortened, and also, a photographer can easily focus on an object image. SOLUTION: As for the camera with an automatic zooming function, in the case an automatic zooming mode is selected by an automatic zooming mode selection switch 15, a photographing optical system including a zoom lens is driven to a prescribed position by a zoom motor driving circuit 33 and a CPU 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic zoom camera having an automatic zoom function.

[0002]

2. Description of the Related Art As is well known, an automatic zoom photographing mode is a method in which a microcomputer in a camera automatically controls a microcomputer based on a distance measurement result of a subject which a camera user (photographer) aims at photographing. This is an automatic photographing mode in which a proper magnification is determined, a photographing lens is automatically zoomed so as to have a focal length corresponding to the photographing magnification, and focusing is performed by autofocus. At this time, if the photographer performs auto-zoom shooting while measuring the distance without setting the distance measurement mark in the viewfinder to the image of the finite distance subject, erroneous distance measurement will not be performed and the proper magnification will not be obtained. In some cases, the picture may be out of focus.

In order to solve such a problem, for example, Japanese Patent Application Laid-Open No. 07-325245 discloses that in the auto zoom mode, when the distance measurement result is infinite, the lens is moved to the telephoto end and then re-measured. A camera that measures the distance and re-executes auto-zoom based on the result of the distance measurement is described.

That is, in a camera having the above-described auto-zoom function, when auto-zoom is selected, first distance measurement is performed. When the result is infinite, the camera automatically enlarges the subject in the viewfinder screen by moving the lens to the tele side, thereby recognizing the photographer that the distance measurement mark does not match the subject image. Let it. Thereafter, the second distance measurement is automatically performed, and the auto zoom mode is executed based on the result of the distance measurement. This allows
Even in the auto zoom mode, you can take a focused picture at the appropriate magnification.

[0005]

By the way, in the case of the auto-zoom camera described in JP-A-07-325245, when the zoom position is a wide position and the subject image is at a long distance, a zoom lens is required. The zoom is performed from the wide position to the tele position. After that, the distance was measured again, and the auto zoom was performed again based on the result. For this reason, in particular, a camera having a long focal length of the photographing lens has a problem that a time lag due to zooming becomes long.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide an automatic zoom camera which reduces a time lag caused by zooming of an automatic zoom and allows a photographer to easily adjust a subject image.

[0007]

That is, the present invention relates to a camera having an auto-zoom function, comprising an auto-zoom selecting means for selecting an auto-zoom mode, and a photographing optical system including a zoom lens. A control unit having a function of driving the photographing optical system to a predetermined position when the automatic zoom mode is selected by the zoom selection unit.

According to the present invention, in an auto zoom camera having an auto zoom function, a distance measuring means for measuring a distance to a subject, a photographing optical system including a zoom lens, a strobe device for exposure control, A red-eye reduction unit that performs pre-flash immediately before shooting using a strobe device; and an auto-zoom selection unit that selects an auto-zoom mode, wherein the red-eye reduction unit operates during auto-zoom. I do.

According to the present invention, in a camera having an auto-zoom function, when an auto-zoom mode is selected by the auto-zoom selecting means, a photographing optical system including a zoom lens is controlled by a control means to a predetermined optical system. Driven into position.

According to the present invention, in an auto-zoom camera having an auto-zoom function, distance measurement to a subject is performed by distance measurement means. Then, using a flash device for exposure control, pre-emission is performed by a red-eye reduction unit immediately before shooting. Further, in the photographing optical system including the zoom lens, the auto zoom mode is selected by the auto zoom selecting means. Further, the red-eye reduction means is operated during the automatic zoom.

In order to minimize the time lag caused by zooming when performing auto-zoom photographing, for example, when the auto-zoom mode is selected, the zoom lens is automatically zoomed to the intermediate position between the wide end and the tele end, and photographing is performed. When the user presses the release switch, the optimum magnification may be determined according to the distance measurement result, and the zoom lens may be zoomed according to the magnification. At this time, the maximum value of the zooming time is a time for driving the zoom lens from the intermediate position to the telephoto end or from the intermediate position to the wide end.

[0012]

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

FIG. 2 shows a first embodiment of the present invention.
FIG. 1 is an external perspective view illustrating a schematic configuration of an auto zoom camera according to the present invention.

In FIG. 2, a photographing lens barrel (hereinafter, referred to as a zoom lens) 2 is provided substantially at the center of the front portion of the camera body 1. And this zoom lens 2
Above the camera, a finder window 3, distance measuring sensors 4 and 5 used for distance measurement, and a known strobe light emitting unit 6 are provided. Further, in FIG. 2, on the right side of the zoom lens, a photometric sensor 8 used for performing photometry, a zoom-up switch 9 for driving the zoom lens 2 to the tele (telephoto) side, and a zoom Zoom down switch 1 for driving lens 2 to the wide (wide angle) side
0 is provided.

A display window 12 for displaying the state of the camera is provided on the upper surface of the camera body 1. A release switch 13 is provided on both sides of the display window 12.
A power switch 14 of the camera and an auto zoom mode selection switch 15 for selecting an auto zoom mode.
Is arranged.

When the power switch 14 is off, the zoom lens 2 is in a retracted state. When the power is turned on by the power switch 14, the zoom lens 2 is turned on.
Is fed to the wide end to be ready for shooting (see step S1 in the flowchart of FIG. 6).

FIG. 3 is a view showing a finder screen when a photographer intends to photograph a subject (person) existing at a predetermined distance L.

In FIG. 1, a distance measurement mark 21 is shown in a finder screen 20. The photographer can take a focused photograph by photographing the subject 22 with the distance measurement mark 21 aligned.

FIG. 1 is a block diagram showing a schematic configuration of an electronic control system of an automatic zoom camera according to the present invention.

In FIG. 1, a microcomputer (central processing unit; hereinafter abbreviated as CPU) 25 mounted on the camera is for controlling each part of the camera. The CPU 25 has a power switch (P
A constant voltage device (constant power source) serving as a power source for operating the CPU 25 and the following various circuits via the WSW 14
26 is connected, the photometric device 27 and the distance measuring device 2
8, zoom position detection circuit 29, non-volatile memory (EEP
ROM) 30, an LD motor drive circuit 32, a zoom motor drive circuit 33, a shutter drive circuit 34, a feed motor drive circuit 35, and a display circuit 36.

The photometric device 27 includes the photometric sensor 8 described above, and is a known device mounted on a camera. The distance measuring device 28 includes the distance measuring sensors 4 and 5 and is a known device mounted on a camera.

The zoom position detecting circuit 29 is a circuit for detecting the zoom position of the photographing optical system. The nonvolatile memory 30 is a memory for storing parameters such as a predetermined distance, which will be described later.

The LD motor drive circuit 32 is a circuit for driving an LD motor 39 for driving a focus lens of a photographing optical system of a camera. The zoom motor drive circuit 33 is a circuit for driving a zoom motor 40 that drives a variable power lens of the photographing optical system.

Similarly, a shutter drive circuit 34 is a drive circuit for a shutter device (STPL) 41 of the camera, and a feed motor drive circuit 35 is a drive circuit for driving a film feed motor 42 of the camera. is there.

The display circuit 36 is a circuit for controlling the display 43 (display in finder and external display) of the camera.

Further, the CPU 25 includes an auto zoom mode selection switch 15 which is turned on in response to operation of an operation member for selecting an auto zoom photographing mode, and a release button (release switch 13) provided on the camera. 1
A first release (1RS) switch 45 that is turned on in conjunction with a pressing operation, and a second release (2R) that is turned on in conjunction with a second pressing operation of the release button.
S) Switch 46 and zoom up (ZMU
P) switch 9 and zoom down (ZMDW) switch 10 are connected.

Although not shown in the above-mentioned CPU 25,
A control unit for controlling the above various circuits;
And an arithmetic unit for performing various arithmetic operations based on the output of the distance measuring device 28 and the output of the distance measuring device 28. In addition, the CPU 25 has an automatic zoom function and other various functions described below.

Although not shown, the finder optical system of the camera is a zoom finder linked to the zoom operation of the photographing optical system.

Next, the operation of the automatic zoom camera according to the present invention will be described with reference to FIGS.

FIG. 4 is a view of the auto-zoom camera as viewed from above.

When the power switch 14 is off, FIG.
As shown in (a), the zoom lens 2 is in a collapsed state. Then, in this collapsed state, the power switch 14
Is turned on, the zoom lens 2 is driven to the wide end, as shown in FIG. In the finder screen at this time, as shown in FIG. 5A, for example, the entire subject 22 is captured in the center of the finder screen 20.

Although not shown in FIG. 4, when the zoom-up switch is operated, the zoom lens 2 is driven to the telephoto side in accordance with the time during which the zoom-up switch is operated. FIG. 4C shows the zoom position in the standard state, and the finder screen 20 at that time is shown.
Are as shown in FIG. 5 (b). FIG. 4D shows the zoom position in the telephoto state, and FIG. 5C shows an example of the finder screen 20 in the telephoto state.

When the auto zoom is set in the wide state and the subject is at a long distance, the zoom lens is driven to the telephoto end. For this reason, especially in a long focus lens, the zooming time becomes long. In order to solve this, when the auto zoom mode is selected, if the zoom lens has been driven to the standard position in advance, as shown in FIG. Driving with a short zooming time in the wide direction or the tele direction is enabled.

If the zoom lens 2 is extended to a predetermined position by the above-described zooming, the subject image in the viewfinder looks large as shown in FIG. It becomes easier to match the image.

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

When the power switch 14 is turned on, first,
In step S1, the zoom lens 2 is extended to the wide end. Then, in step S2, the state of the auto zoom mode selection switch 15 is detected. The zoom position at this time is set to Z1. Immediately after the power switch 14 is turned on, the zoom lens 2 is extended to the wide end.

Next, in step S3, it is determined whether or not the auto zoom mode is selected based on the result detected in step S2. Here, when the auto zoom mode is selected, the process proceeds to step S4, and when the auto zoom mode is not selected, the process proceeds to step S15 to perform the operation of the normal shooting mode.

In steps S4 to S14, the operation in the auto zoom photographing mode is performed.

In step S4, it is detected whether or not the automatic zoom mode has been set. Here, if the auto zoom mode is not set, it means that the auto zoom mode has been set for the first time. In this case, the process proceeds to step S5, and the auto zoom mode is set. Next, the process proceeds to step S6, and after the zoom lens 2 is moved to the predetermined position ZS, the process proceeds to step S7.
Move to.

If the automatic zoom mode has already been set in step S4, the process proceeds to step S7 without performing the processes in steps S5 and S6.

In step S7, it is determined whether or not the release switch 13 has been pressed by the photographer.
Here, if the first release switch 45 has not been pressed, the process proceeds to step S2, and the process of reading out the auto zoom switch is repeated again. on the other hand,
If the first release switch 45 has been pressed, the flow shifts to step S8 to enter a shooting operation.

In step S8, distance measurement and photometry are performed using the distance measurement device 28 and the photometry device 27, respectively, and distance measurement data L1 and photometry data P1 are input to the CPU 25. Subsequently, in step S9, the current zoom position Z1 or ZS is detected. Further, step S1
At 0, the zoom drive amount is determined based on the auto zoom characteristics stored in the CPU 25.

FIG. 7 is a diagram showing characteristics of distance measurement data versus focal length data in the auto zoom mode.

In FIG. 7, in the auto-zoom interlocking range, the CPU 25 automatically zooms the photographing lens so as to have a focal length corresponding to an appropriate photographing magnification based on the distance measurement result. At this time, the relationship between the zoom position Z and the shooting distance L can be expressed as follows.

Z = ML·L + N (1) M = (ZT−LW) / (LT−LW) (2) N = (ZW−M · LW) (3) where ZT is the telephoto end. , ZW is the zoom position at the wide end, LT is the subject distance for achieving the proper shooting magnification at the telephoto position, and LW is the subject distance for achieving the proper shooting magnification at the wide position.

Therefore, in the distance data L1 measured in step S8, ZM = ML1 + N (4), which is the target zoom position.

Then, a difference ZP between the target zoom position and the current zoom position is calculated. ZP = ZM-ZS (5) In step S11, the zoom lens 2 is driven with respect to the zoom target thus obtained.

Next, in step S12, it is determined whether or not the second release switch 46 has been pressed. Here, if the second release switch 46 is pressed, the process proceeds to step S13.

In step S13, the LD motor drive circuit 32 and the LD motor drive circuit 32 are operated based on the distance data, photometric data, and current zoom position data measured in step S8.
The focusing lens is driven via the motor 39. At the same time, the shutter device 41 is driven via the shutter drive circuit 34 to expose the film.

After this exposure, in step S14, the film (not shown) is wound up by one frame via the feed motor drive circuit 35 and the film feed motor 42. Thereafter, the process proceeds to step S2, and the one-frame photographing operation in the auto zoom mode ends.

Next, the normal photographing mode will be described.

If the automatic zoom mode has not been selected in step S3, the flow shifts to step S15 to determine whether or not the release switch 13 has been pressed by the photographer. Here, if the first release switch 45 is not pressed, the above-described step S2 is performed.
Then, the operation is repeated from the reading of the auto zoom mode selection switch 15 again. On the other hand, if the first release switch 45 is depressed in step S15, the flow shifts to step S16 to start the shooting operation.

In step S16, the current zoom position is detected. Next, in step S17, the distance measuring device 2
8 and the photometric device 27 are used to perform distance measurement and photometry, respectively, and the distance measurement data L1 and the photometry data P1 are
It is input to U25. Further, in step S18, the drive amount of the focusing lens is determined based on the distance data and photometric data measured in step S17 and the current zoom position data detected in step S16.

Then, in a step S19, it is determined whether or not the second release switch 46 has been pressed. Here, if the second release switch 46 is pressed, the process proceeds to step S20.

In step S20, the above-mentioned step S17
The focusing lens is driven via the LD motor drive circuit 32 and the LD motor 39 on the basis of the focusing lens extension amount obtained in. At the same time, the shutter device 41 is driven via the shutter drive circuit 34 to expose the film.

After this exposure, in step S21, a film (not shown) is wound up by one frame via the feed motor driving circuit 35. Thereafter, the process proceeds to step S2, and the one-frame shooting operation in the normal shooting mode ends.

As described above, according to the first embodiment,
In a camera having an auto zoom function, when the auto zoom mode is selected by operating the auto zoom mode selection switch, the time lag due to zooming can be reduced by driving the zoom lens to a predetermined position.

As a modification of the above-described first embodiment, the predetermined zoom position ZS may be, for example, an intermediate position between the wide end and the tele end, or may be a standard position.

Next, a second embodiment of the present invention will be described.

In the second embodiment, the schematic configuration of the camera is the same as that of the first embodiment, and a description thereof will be omitted.

In the second embodiment, an auto-zoom camera equipped with a red-eye reduction means for emitting a strobe to reduce a phenomenon in which a person's eyes appear red when a person as a subject is photographed in color from the front. Will be described as an example.

FIG. 8 is a block diagram showing a schematic configuration of an electronic control system of an automatic zoom camera according to the second embodiment.

In FIG. 8, a microcomputer (CPU) 50 mounted on the camera is for controlling each part of the camera. The CPU 50 is connected to the CPU 50 via a power switch (PWSW) 51.
50 and a constant voltage device (constant power source) 52 serving as a power source for operating the following various circuits, a photometric device 53, a distance measuring device 54, a zoom position detecting circuit 55, and a nonvolatile memory (EEPROM) 56 , LD motor drive circuit 58, zoom motor drive circuit 59, shutter drive circuit 6
0, feed motor drive circuit 61 and strobe drive circuit 62
Is connected.

The photometric device 53 has a photometric sensor 8 and the distance measuring device 54 has a distance measuring sensor. Further, the zoom position detection circuit 55 is a circuit for detecting the zoom position of the photographing optical system. The nonvolatile memory 30 is a memory for storing parameters such as a predetermined distance, which will be described later.

The LD motor drive circuit 58 is a circuit for driving the LD motor 64 for driving the focus lens of the photographing optical system of the camera. The zoom motor drive circuit 59 is a circuit for driving a zoom motor 65 for driving a variable power lens of the photographing optical system.

Similarly, a shutter drive circuit 60 is a drive circuit for a shutter device (STPL) 66 of the camera, and a feed motor drive circuit 61 is a drive circuit for driving a film feed motor 67 of the camera. is there.

The flash drive circuit 62 is a circuit for controlling light emission of a flash device 68 of the camera.

Further, the CPU 50 has an auto-zoom mode selection switch 70 which is turned on in response to an operation of an operation member for selecting an auto-zoom photographing mode, and an operation member for operating a later-described operation member for selecting a red-eye emission mode. Switch (SW) 71, zoom-up (ZMUP) switch 72, zoom-down (ZM
DW) switch 73, release button (release switch 1)
A first release (1RS) switch 74 that is turned on in conjunction with the first depressing operation of 3) and a second release (2RS) switch 75 that is turned on in conjunction with the second depressing operation of the release button are connected. I have.

Although not shown in FIG.
A control unit for controlling the above various circuits;
And an arithmetic unit for performing various arithmetic operations based on the output of the distance measuring device 54 and the output of the distance measuring device 54. In addition, an automatic zoom function described below and other various functions are configured in the CPU 50.

Although not shown, the finder optical system of this camera is a zoom finder that is linked to the zoom operation of the photographing optical system.

Next, the operation of the camera according to the second embodiment will be described with reference to the flowchart of FIG.

When the power switch 51 is turned on, first,
In step S31, the zoom lens 2 is extended to the wide end. Then, in step S32, the state of the auto zoom mode selection switch 70 is detected. The zoom position at this time is set to Z11. Immediately after the power switch 51 is turned on, the zoom lens 2 is extended to the wide end.

Next, in step S33, it is determined whether or not the automatic zoom mode is selected based on the result detected in step S32. If the auto zoom mode has been selected, step S
Then, the flow shifts to 34, where an operation in the auto zoom shooting mode is performed. On the other hand, if the auto zoom mode has not been selected, the flow shifts to step S43 to perform the operation of the normal shooting mode.

In the auto zoom photographing mode, in step S34, it is determined whether or not the photographer has pressed the first release switch 74. here,
If the first release switch 74 has not been pressed, the flow shifts to step S32, and the process of reading out the auto zoom switch is repeated again. On the other hand, if the first release switch 74 has been pressed, the flow shifts to step S35 to start the shooting operation.

In step S35, distance measurement and photometry are performed using the distance measurement device 54 and the photometry device 53, and the distance measurement data L11 and the photometry data P11 are
Input to 0. Subsequently, in step S36, the CPU
The zoom drive amount is determined based on the auto zoom characteristics stored in 50.

The details of the auto-zoom mode characteristics are the same as those in the first embodiment described above, and a description thereof will be omitted.

In step S37, the state of the red-eye emission selection switch 71 is detected so as to determine the red-eye reduction emission mode. Thereby, it is detected whether or not the automatic zoom mode is selected. That is, if the red-eye reduction flash mode is not selected,
Move to step S38. If the red-eye reduction light emission mode has been selected, the process proceeds to step S39.

In step S38 (red-eye reduction light emission mode is not selected), the zoom lens 2 is driven with respect to the zoom target obtained in step S36. On the other hand, in step S39 (red-eye reduction light emission mode selection), the zoom lens 2 is driven with respect to the zoom target obtained in step S36. At the same time, the flash drive circuit 62 is driven, and the flash device 68 performs pre-emission for red-eye reduction.

Next, in step S40, it is determined whether or not the second release switch 75 has been pressed. Here, if the second release switch 75 is pressed, the process proceeds to step S41.

In step S41, the above step S
The focusing lens is driven via the LD motor drive circuit 58 and the LD motor 64 based on the distance data, photometric data, and current zoom position data measured and determined in steps S35 and S36. At the same time, the shutter device 66 is driven via the shutter drive circuit 60 to expose the film.

After this exposure, at step S42, a film (not shown) is wound up by one frame via the feed motor drive circuit 61. Thereafter, the flow shifts to step S32 to end the one-frame shooting operation in the normal shooting mode.

The state of red-eye emission during the automatic zoom will be described with reference to the timing chart of FIG.

According to this, when the first release switch 74 and the second release switch 75 are turned on, the pre-flash by the strobe device 68 is performed several times.
When the driving of the zoom lens 2 is completed and the shutter device 66 is driven, it can be seen that the main light emission by the strobe device 68 is performed.

The operations in the normal photographing mode in steps S43 to S49 are described in steps S15 to S2 in the flowchart of FIG. 6 in the first embodiment.
Since the operation is the same as that of No. 1, the description is omitted.

As described above, according to the second embodiment,
In cameras with auto zoom and red eye reduction functions, when auto zoom mode is selected by the auto zoom selection means, pre-flash for red eye reduction is performed during auto zoom to reduce the time lag due to zooming. Can be.

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

(1) A photographing optical system including a zoom lens and a focusing lens, a finder optical system whose magnification changes in conjunction with the zoom lens of the photographing optical system, and a zoom lens drive for driving the zoom lens Means, a focusing lens driving means for driving the focusing lens, a finder optical system driving means for driving the finder optical system, a distance measuring means for measuring a distance to an object to be photographed, and a luminance of the object to be photographed Metering means, an exposure means for exposing an image forming surface, an auto zoom selecting means for selecting an auto zoom photographing mode, a display means for displaying a state of the photographing mode, an output of the distance measuring means and an output of the light measuring means. A calculation function for performing various calculations such as an exposure calculation and a lens drive amount calculation based on data; and a zoom and focus lens driving unit, the display unit, the exposure unit, A distance measuring unit, and a control unit having a control function of controlling the photometric unit.The control unit includes a zoom lens and a zoom lens when the auto zoom shooting mode is selected by the auto zoom selection operation unit. A camera further comprising a function of driving a finder optical system to a predetermined position.

(2) The camera according to (1), wherein the predetermined position is an intermediate position between wide and tele.

(3) The camera according to (1), wherein the predetermined position is a standard position.

(4) Further, a strobe device and a red-eye reduction light emitting device using the strobe device are provided, and the red-eye reduction light emission by the strobe device and the red-eye reduction light emitting device is performed during the auto zoom operation. The camera according to (1).

[0091]

As described above, according to the present invention, it is possible to provide an auto-zoom camera that reduces the time lag caused by auto-zoom zooming and allows the photographer to easily adjust the subject image.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an electronic control system of an automatic zoom camera according to the present invention.

FIG. 2 is an external perspective view showing a schematic configuration of the automatic zoom camera according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a finder screen when a photographer attempts to photograph a subject (person) existing at a predetermined distance L.

FIG. 4 is a top view of the auto zoom camera,
(A) is a diagram showing a retracted state of the zoom lens when the power switch is off, (b) is a diagram showing a state of the zoom lens at the wide end, (c) is a diagram showing a standard state,
(D) is a diagram showing a state where the zoom lens is at the wide end.

FIG. 5 shows how the viewfinder screen looks.
(A) is a diagram showing a state in which the zoom lens is at a wide end,
(B) is a diagram showing a standard state, and (c) is a diagram showing a state where the zoom lens is at a wide end.

FIG. 6 is a flowchart illustrating an operation of the camera according to the first embodiment of the present invention.

FIG. 7 is a diagram illustrating characteristics of distance measurement data versus focal length data in an auto zoom mode.

FIG. 8 is a block diagram showing a schematic configuration of an electronic control system of an automatic zoom camera according to a second embodiment of the present invention.

FIG. 9 is a flowchart illustrating an operation of the camera according to the second embodiment of the present invention.

FIG. 10 is a timing chart for explaining red-eye emission during auto-zoom according to the second embodiment.

[Explanation of symbols]

1 camera body, 2 taking lens barrel (zoom lens), 4, 5 ranging sensor, 8 photometric sensor, 9 zoom up switch, 10 zoom down switch, 13 release switch, 14 power switch (PWSW), 15 auto zoom mode Selection switch (SW), 20 finder screen, 21 distance measurement mark, 22 subject, 25 microcomputer (central processing unit; CP)
U), 26 constant-voltage device (constant power supply), 27 photometric device, 28 distance measuring device, 29 zoom position detecting circuit, 30 nonvolatile memory (EEPROM), 32 LD motor driving circuit, 33 zoom motor driving circuit, 34 shutter driving Circuit, 35 feed motor drive circuit, 36 display circuit, 45 first release (1RS) switch, 46 second release (2RS) switch.

Claims (4)

[Claims] 1. A camera having an auto-zoom function, an auto-zoom selecting means for selecting an auto-zoom mode, a photographing optical system including a zoom lens, and an auto-zoom mode selected by the auto-zoom selecting means. A control means having a function of driving the photographing optical system to a predetermined position. 2. The automatic zoom camera according to claim 1, wherein the predetermined position is located between a wide end and a tele end of the photographing optical system. 3. The automatic zoom camera according to claim 1, wherein the predetermined position is a standard position of the photographing optical system. 4. An auto-zoom camera having an auto-zoom function, a distance measuring means for measuring a distance to a subject, a photographing optical system including a zoom lens, a strobe device for exposure control, Red-eye reduction means for performing pre-emission immediately before shooting by using; and auto-zoom selection means for selecting an auto-zoom mode in the photographing optical system, wherein the red-eye reduction means operates during auto-zoom. An auto zoom camera characterized by the following.