JPH0566339A - Single lens reflex camera - Google Patents

Abstract

PURPOSE:To precisely grasp the state of an object field just before release by providing an object observation means and making an object observable by a viewing angle different from that of the picture to be photographed. CONSTITUTION:The object observation means(CPU) capable of observing the object by the viewing angle different from that of the picture to be photographed is provided. Since it is bright and back lighted in the case that a person is positioned at a center, the mountain of a background is positioned at a left back part and the sun is included at the right upper part, the picture 61 obtained by adjusting exposure on the person by skipping the background is displayed as a first candidate and the picture 62 obtained by making the person a silhouette is displayed as a second candidate. Besides, the picture 63 in a daylight synchro state is displayed as a third candidate. Moreover, the picture 64 obtained by focusing the person whose range-finding is executed at a central part is displayed as the first candidate and the picture 65 obtained by focusing the mountain whose range-finding is executed at a left side part is displayed as the second candidate. Besides, the picture 66 adjusted to a focal distance on a wide end side is displayed as the first candidate, the picture 67 adjusted to a set focal distance is displayed as the second candidate and the picture 68 adjusted to the focal distance on a telephoto end side is displayed as the third candidate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single lens reflex camera.

[0002]

2. Description of the Related Art Conventionally, in a single-lens reflex camera, a subject has been observed through a viewfinder within the range of the screen actually photographed.

[0003]

However, since the conventional camera described above can observe only the range of the screen to be photographed, it is necessary to decide the composition when photographing in a crowd or in a place facing the road. Immediately before the release, the passers-by crossed between the main subject and the camera, or a car unsuitable for the background of the main subject passed, ruining the picture. In the latter case, in addition to the failure in composition, there is a possibility that proper exposure may not be obtained due to reflection of the window glass of the vehicle.

It is an object of the present invention to provide a single-lens reflex camera that enables observation at a different angle of view from the screen on which a picture is taken so that the situation of the object field immediately before the release can be accurately observed.

[0005]

A first solution means of a single-lens reflex camera according to the present invention is a subject observation means (CPU 10) capable of observing a subject at a photographing field angle set by a photographer and a field angle different from the photographing field angle. , # 705).

A second solving means is characterized in that, in the single-lens reflex camera of the first means, a display permission means (3) for permitting display at the different angle of view is provided to the subject observing means. ..

A third solving means is, in the single-lens reflex camera of the first solving means, zooming means (25, 26) for zooming a photographing zoom lens, and zooming the zooming means to the subject observing means. View angle control means (CPU 10, # 614, 61) for setting different view angles
5) and are included. The fourth solution is
In the single-lens reflex camera of the second solving means, the zooming means uses a motor as a driving source (26).

A fifth solving means is the single-lens reflex camera of the third solving means, wherein the angle-of-view control means controls the zooming means to zoom the photographing zoom lens to a wide side. The different angle of view is set (# 76).

A sixth solving means is the single-lens reflex camera according to the third solving means, wherein the angle-of-view control means controls the zoom means to zoom the photographing zoom lens toward the tele side. The different angle of view is set (# 77).

A seventh solving means is the single-lens reflex camera of the third solving means, wherein the angle-of-view control means controls the zooming means to zoom the photographing zoom lens to a predetermined magnification. The different angle of view is set (# 605, # 606).

An eighth solution means is the single-lens reflex camera of the first solution means, wherein the view angle control means moves from the different view angle to the photographing view angle by operating a shutter button. It is characterized by controlling (# 107).

A ninth solving means is, in the single-lens reflex camera of the first solving means, divided photometry means (1) for dividing photometry of a field and photometry corresponding to the photographing angle of view by the divided photometry means. Exposure control means for controlling exposure according to an exposure value measured in a range.

A tenth solving means is, in the single-lens reflex camera of the first solving means, a multipoint distance measuring means (4) for distance-measuring a field and a multipoint distance measuring means for photographing the image. It has a focus control means for controlling the focus by a distance measurement value measured in a distance measurement range corresponding to the angle of view.

[0014]

According to the present invention, the object can be observed at the same time by the object observing means at the photographic angle of view set by the photographer and at a field angle different from the photographic field angle.

[0015]

The present invention will be described in detail below with reference to the drawings and the like. FIG. 1 is a block diagram showing an embodiment of a single lens reflex camera according to the present invention.

The image pickup device 1 is a device for performing image pickup and photometry, and has a screen division shape of 540,000 pixels (horizontal 900 pixels, vertical 600 pixels) as shown in FIG. The obtained luminance value is BAE (m, n) (m = 1 to 90)
0, n = 1 to 600). At this time, the lower left address in the figure is the case of (1, 1), and the upper right address is the case of (900, 600). The output of the image sensor 1 is connected to the CPU 10 via a known image processing circuit 2.

An external device connection connector 13 is provided to the CPU 10 via a display device interface (IF) 12.
a and 13b are connected, and an external device connector 1
An electronic viewfinder 14 and an electronic notebook 15 which are display means of the present invention can be connected to 3a and 13b. An optical viewfinder 11 is provided in addition to the electronic viewfinder 14.

The distance measuring element 4 is an element for measuring the photographing distance to the object. As shown in FIG. 3, the shape of the distance measuring frame of the distance measuring element 4 is a central portion 4a, a left portion 4b, Distance measurement is performed at three points on the right part 4c, the distance measurement value obtained from the central part 4a is D (1), the distance measurement value obtained from the left part 4b is D (2), and the distance measurement value obtained from the right part 4c. Be D (3). The output of the distance measuring element 4 is connected to the CPU 10 via a known distance measuring circuit 5. The distance measuring method is not particularly limited.

The external device connection connector 1 is connected to the CPU 10 via an external storage medium interface (IF) 16.
7 is connected to the external device connector 17,
A disk device 18 is connected and various data such as image data can be stored. This disk device 18
An electronic still picture can be obtained by playing back the contents recorded on the disc.

The CPU 10 also includes an exposure control circuit 19
Are connected, and the shutter 20 and the diaphragm 22 on the photographing lens L side are controlled based on the BAE brightness value obtained from the image pickup device 1 to expose the film 21.

Further, an AF motor control circuit 23 is connected to the CPU 10 to drive an AF motor 24, and a Zoom motor control circuit 25 is connected to the Zoom motor.
The motor 26 is driven. In FIG. 1, the part indicated by the broken line indicates the side of the taking lens L, and in addition to the above, the taking lens L has an encoder 27 for detecting the taking distance information X from the extended position of the taking lens L, and a focal length. A memory 28 for storing f, a memory 29 for storing other unique information, and the like are incorporated.

The multi-result prediction information display permission switch 3 is
The switch is a switch that allows to enter a mode for displaying information of a plurality of predicted images obtained by setting different control values, and a known on / off switch can be used as a switch form. Pointing position switch 6
Is the frame N displayed on the electronic viewfinder 14.
O. Of the displayed frame No. Is a switch for selecting. The outputs of the switches 6 and 7 are connected to the CPU 10.

The dimming element 8 is an element for receiving the reflected light of the flash emission, and in this embodiment, as shown in FIG. 4, the central portion 8a, the upper left portion 8b, the upper right portion 8c, the lower left portion 8d, the right portion. The lower part 8e has a screen-divided shape that is divided into five parts, and is connected to the CPU 10 through a known dimming circuit 9. CP
U10 is provided with a flash means 31 through a flash control circuit 30.
It is connected to the. After the shutter 20 is fully opened, the flashing means 31 starts the light emission, and the image of the object field is changed to the film 2.
The light reflected by the surface No. 1 is photoelectrically converted by the light control element 8, and the flashing means 3 is arranged to stop the light emission when the predetermined light amount is reached.
The light emission amount of 1 is controlled.

Next, the operation of this embodiment will be described focusing on the flow of the CPU 10. FIG. 5 is a flow chart showing the main routine of the CPU of the embodiment of the present invention. In step # 101, the memory 2 built in the taking lens L
Focal length information fmin, fmax from 8 and encoder 2
7. Shooting distance information X from 7, brightness value BA from image sensor 1
E, the distance measurement value D (k) from the distance measurement element 4 and the like are detected.

In step # 102, step # 101
The normal exposure control value BNML, the normal flash presence / absence control value SnML for determining the necessity of flash emission, the normal focus position control value XNML, the normal angle of view control based on the detection result detected by Each value fNML is calculated.

In step # 103, it is determined whether or not the multiple result prediction information display permission switch 3 is on, and if it is in the on state, different control values according to the present invention are set before the photographing after step # 104. A mode for displaying a plurality of images obtained at times is entered, and if it is not in the on state, the process proceeds to step # 110. In step # 110, the normal mode without display is entered, and the normal exposure control value BNML, the normal flash presence / absence control value SNML, the normal focus position control value XNML, and the normal angle-of-view control value fNML calculated in step # 102 are changed to the actual values. Substitute into the determined exposure control value BANS, the determined flash presence / absence control value SANS, the determined focus position control value XANS, and the determined angle of view control value fANS used for photographing.

In step # 104, the exposure-related subroutine detailed in FIG. 8 is executed, and the candidate exposure control value B
Calculate CND and flash presence / absence control value SCND. Step #
At 105, a focus-related subroutine detailed in FIG. 9 is executed to calculate a candidate focus position control value XCND. In step # 106, the composition-related subroutine described in detail in FIG. 10 is executed to calculate the candidate view angle control value fCND.

In step # 107, the display subroutine detailed in FIG. 11 is executed, and steps # 104 to # 10 are executed.
The exposure control value BCND, the flash presence / absence control value SCND, the focus position control value XCND, and the view angle control value fCN which are the candidates calculated in step 6.
D is the frame No. Each of them is displayed on the electronic viewfinder 14 (see FIG. 15), and when the electronic notebook 15 is connected, it can also be displayed on the monitor (image) of the electronic notebook 15.

At step # 108, the selection subroutine described in detail in FIG. 12 is executed, and the exposure control value BCND, the flash presence / absence control value SCND, the focus position control value XCND, and the image having the plurality of different candidates displayed at step # 107 are displayed. Angle control value f
Select an arbitrary control value from CND to determine the exposure control value B
Substitute for ANS, decision flash presence / absence control value SANS, decision focus position control value XANS, and decision angle of view control value fANS.

In step # 109, step # 108
Or each control value BANS, S determined in step # 110
Based on ANS, XANS, and fANS, the driving unit of the camera is drive-controlled to execute photographing.

Next, the subroutine included in FIG. 5 will be described in detail with reference to FIGS. FIG. 6 is a flow chart showing a subroutine of the detecting operation of the CPU which constitutes an embodiment of the present invention.

In steps # 201 and # 202, based on the information of the focal length f from the memory 28 in the taking lens L shown in FIG. 1, the minimum focal length fmin of the attached taking (zoom) lens L and , And the maximum focal length fmax are read. Next, in step # 203, the memory 2
Based on the information of the focal length f from 8, the focal length fPRM set by the photographer, for example, is read into the attached photographing lens.

At step # 204, the photographing distance X is read from the result of detecting the extended position of the photographing lens L by the encoder 27. In step # 205, the brightness value BAE (m, n) of each divided area of the image sensor 1 is read. In step # 206, the distance measurement value D (k) from the distance measurement element 4, that is, the distance measurement value D (1) detected in the central portion 4a of the frame shown in FIG. 3 and the distance measurement value detected in the left portion 4b. The value D (2) and the distance measurement value D (3) detected by the right part 4c are read.

FIG. 7 shows a CP which constitutes an embodiment of the present invention.
7 is a flowchart showing a subroutine of a normal calculation operation of U. In the flow chart shown in FIG. 5, when the process proceeds to step # 110 or is not selected in step # 108, shooting is performed based on the result calculated in this routine.

In the normal calculation, the normal exposure control value BNML is
The brightness value BAE (m, n) of each divided area by the image sensor 1
For all pixels (m = 1 to 900, n = 1 to 60)
0) is obtained, and the average luminance value divided by the number of pixels is substituted (step # 301). Normal flash presence / absence control value Snml
Sets SNML = 0, assuming that flash light emission is not performed (step # 302). Normal focus position control value XNML
Is the distance measurement value D measured at the screen central portion 4a shown in FIG.
It is set to (1) (step # 303). The normal view angle control value fNML is set to the currently set focal length fPRM (step # 304).

FIG. 8 shows a CP which constitutes an embodiment of the present invention.
9 is a flowchart showing a subroutine of an exposure-related operation of U.

In steps # 401 to # 404, the focus position control value XCND (1) of the first candidate to the focus position control value XCND (3) of the third candidate are set to step # 30.
The normal focus position control value XNML calculated in step 3 is substituted, and the normal image calculated in step # 304 is applied to the first candidate view angle control value fCND (1) to the third candidate view angle control value fCND (3). Substitute the angle control value fNML.

In step # 405, step # 205
For the brightness value BAE (m, n) of each divided area detected in step S1, the total sum of all pixels (m = 1 to 900, n = 1 to 600) is calculated, and the arithmetic mean is calculated by dividing by the number of pixels. , Average brightness value BM. Next, in step # 406,
The average of the lowest brightness value Bmin and the average brightness value BM detected in step # 205 is calculated from the expression (Bmin + BM) / 2 and is substituted for the low brightness priority brightness value BL. Step # 4
In 07, the average of the highest brightness value Bmax and the average brightness value BM detected in step # 205 is (Bmax + BM) / 2.
The value is calculated from the equation (3) and is substituted into the high brightness-oriented brightness value BH.

Steps # 408 to # 410 are
It is a routine showing exposure setting when the scene is dark.
That is, in step # 408, it is determined whether or not the object scene is dark, specifically, whether or not the average brightness value BM is smaller than 5 [BV], and the average brightness value BM is smaller than 5 [BV]. If is smaller, the process proceeds to step # 409. In step # 409, the exposure control value BCND (1) of the first candidate is
As the exposure with emphasis on low brightness, the brightness value BL with emphasis on low brightness is substituted, and as the exposure control value BCND (2) of the second candidate, 5 [BV] is substituted as the brightness value necessary for ordinary flash photography, Three
The exposure control value BCND (3) of the candidate is 9 with no candidate.
Substitute 99 for it and proceed to step # 410.

In step # 410, step # 409
Flash light presence / absence control value SCND corresponding to the first to third candidates of
(1) to SCND (3) are set. That is, for the first candidate flash presence / absence control value SCND (1), 0 is substituted for no flash emission, and the second candidate flash presence / absence control value SCND
In (2), 1 is substituted for the flash emission, and the third candidate flash presence / absence control value SCND (3) is 9 for no candidate.
Substitute 99.

In step # 408, the average brightness value B
When it is determined that M is greater than or equal to 5 [BV], it is determined in step # 411 whether the backlight is the backlight. When it is determined that the subject is backlit, that is, when the field is bright and the subject is backlit, the process proceeds to steps # 412 and # 413. here,
To detect whether the backlight is present, for example, the average brightness value near the central portion and the average brightness value near the peripheral portion are compared, and when the average brightness value near the central portion is darker by a predetermined amount or more, it is determined that the backlight is present. There is.

In step # 412, the low-brightness emphasized brightness value BL is substituted for the first candidate exposure control value BCND (1), and the high-brightness emphasized brightness value is substituted for the second candidate exposure control value BCND (2). Substituting BH, exposure control value BCND of the third candidate
Substituting the average brightness value BM into (3), step # 41
Go to 3.

In step # 413, step # 412
Flash light presence / absence control value SCND corresponding to the first to third candidates of
(1) to SCND (3) are set. That is, for the first and second candidate flash light presence / absence control values, SCND (1) = 0 and SCND (2) = 0 are substituted for no flash light emission, and the third candidate flash presence / absence control value is flash light emission. As SCN
Substitute D (3) = 1.

Steps # 414 to # 415 show a routine in the case where the object scene is bright and is in a normal light condition. If it is determined in step # 411 that the light is not backlit, the process proceeds to step # 414.

In step # 414, the low-brightness-oriented brightness value BL is substituted into the first candidate exposure control value BCND (1),
The average brightness value BM is added to the exposure control value BCND (2) of the second candidate.
Is assigned to the third candidate exposure control value BCND (3), and the high-luminance priority luminance value BH is substituted, and the process proceeds to step # 415.

In step # 415, step # 414
Flash light presence / absence control value SCND corresponding to the first to third candidates of
(1) to SCND (3) are set. That is, first to
The third candidate flash presence / absence control values are SCND (1) = 0, SCND (2) = 0, SCND, assuming that no flash light is emitted.
(3) = 0 is substituted.

FIG. 9 shows a CP which constitutes an embodiment of the present invention.
7 is a flowchart showing a U-focus operation subroutine. In steps # 501 to # 504, the first candidate (k = 4) and the second candidate (k =) of the exposure control value BCND (k), the flash presence / absence control value SCND (k), and the view angle control value fCND (k). 5), the normal control values BNML, SNML, fNM respectively
Substitute L.

In step # 505, the distance difference Δ between the farthest peripheral distance and the central distance is calculated as | MAX (D (2), D
(3))-D (1) |

In step # 506, the distance difference Δ is 1
If it is smaller than 0D (1) / f, the process proceeds to step # 507. If smaller, the process proceeds to step # 508.

In step # 507, the distance measurement value D (1) at the center is substituted for the first candidate focus position control value XCND (4), and the second candidate focus position control value XCND (5) is not present. As a result, 999 is substituted.

In step # 508, the focus detection control value XCND (4) of the first candidate is the distance measurement value D (1) of the central portion, and the focus position control value XCND (5) of the second candidate is MAX (D
Substitute (2), D (3)). In this case, in step # 508, the taking lens L is actually moved to the position of the focus position control value XCND (5), and the value is preliminarily sampled.

FIG. 10 shows C which constitutes an embodiment of the present invention.
7 is a flowchart showing a subroutine of a composition calculation related operation of PU. In steps # 601 to # 604, the exposure control value BCND (k) and the flash presence / absence control value SCND
(K), the first to third candidates (k = 6 to 8) of the focus position control value XCND (k) have the normal control values BNML and S, respectively.
Substitute NML and fNML.

In step # 605, step # 203
The wide side focal length fWD = 0.7fPRM is calculated based on the set angle-of-view control value fPRM detected in step # 60.
In step 6, the telephoto side focal length fTL = 1.4fPRM is calculated. For example, when the set focal length fPRM = 50 mm, the wide side focal length fWD = 35 mm and the tele side focal length fTL = 70 mm are calculated.

In step # 607, it is determined whether the wide-side focal length fWD is greater than or equal to the minimum focal length fmin. If the wide-side focal length fWD is greater than or equal to the minimum focal length fmin, the process proceeds to step # 608, and the wide-side focal length is determined. When the distance fWD is smaller than the minimum focal length fmin, step #
Proceed to 609.

In step # 608, the telephoto side focal length f
It is determined whether TL is less than or equal to the maximum focal length fmax. If it is less than or equal to the maximum focal length fmax, the process proceeds to step # 610, and if it is greater than the maximum focal length fmax, the process proceeds to step # 611. In step # 609, it is determined whether the tele-side focal length fTL is less than or equal to the maximum focal length fmax, and if it is less than or equal to the maximum focal length fmax, step # 6.
12. If it is larger than the maximum focal length fmax,
Go to step # 613.

In step # 610, the wide-side focal length f
When both the WD and the telephoto side focal length fTL can be set, the wide side focal length fWD is substituted into the first candidate field angle control value fCND (6), and the second candidate field angle control value fCND ( 7)
Substituting the set focal length fPRM into, and substituting the telephoto side focal length fTL into the third candidate view angle control value fCND (8).

In step # 611, the wide-side focal length f
When WD can be set but tele-side focal length fTL cannot be set, the wide-side focal length fWD is substituted for the first candidate field angle control value fCND (6), and the second candidate field angle control value is set. fCND
The set focal length fPRM is substituted into (7), and the third candidate view angle control value fCND (8) is substituted with 999 as no candidate.

In the case of steps # 610 and # 611,
The taking lens L is moved to the value of the first candidate angle-of-view control value fCND (6), and preliminary sampling is performed (step # 61).
4, # 615).

In step # 612, the wide-side focal length f
When WD cannot be set and the telephoto side focal length fTL can be set, the set focal length fPRM is substituted for the first candidate view angle control value fCND (6), and the second candidate view angle control value fCND is set.
The telephoto side focal length fTL is substituted into (7), the field angle control value fCND (8) of the third candidate is substituted, and 999 is substituted.

In step # 613, the wide-side focal length f
When both the WD and the telephoto side focal length fTL cannot be set, the set focal length fPRM is substituted for the first candidate field angle control value fCND (6), and the second and third candidate field angle control values are set. fCN
D (7) and fCND (8) are set to 999 as no candidate. In this case, it may be considered that a single focal point or a lens having a small zoom ratio is used.

In each of the steps # 610 to # 613 described above, the set position, the predictable position, and the position requiring preliminary sampling are as shown in the following table, and there is no information on the side wider than the set position. Therefore, it will be preliminarily sampled and prepared for the actual photographing.

Step: # 610 # 611 # 612 # 613 Wide W: Preliminary sampling Preliminary sampling −−−−−−−− Normal N: Set position Set position Set position Set position Tele T: Predictable −−−− Predictable -----

It should be noted that all the candidates may be sequentially preliminarily sampled under the conditions, but it is also possible to make a pseudo prediction regarding the exposure and the focal length. For example, JP-A-62-1
By using the method disclosed in 50743, it is possible to process and display it as a prediction result without actually performing zooming. When the composition is predicted, if the main subject is included and only the size is desired to be viewed, the preliminary sampling used for display need not be performed in order to improve the quick-shooting property.

FIG. 11 shows C which constitutes an embodiment of the present invention.
7 is a flowchart showing a subroutine of a PU display operation.
According to the candidates calculated as described above, all candidates (k = 1 to 8) (steps # 701, # 70)
2, # 707), the exposure control value BCND (k), the flash presence / absence control value SCND (k), the focus position control value XCND (k), and the angle-of-view control value fCND (k) are predicted and shown in FIG. Frame No. Display the result of k (# 70
5). At this time, each candidate control value BCND (k), SCND
If there is 999 data in (k), XCND (k), and fCND (k) (# 703), the frame No. The k is filled in and not displayed (# 706).

Here, as shown in FIG. 13, as the object scene 50 to be photographed, there is a person 51 in the center, a mountain 52 in the background is located on the left rear, and a sun 53 is included on the upper right. And explain.

In such a case, since it is bright and backlit, in the exposure-related calculation described with reference to FIG.
12, # 413 is executed. That is, the first candidate is B
CND (1) = BL and SCND (1) = 0 are set, and an image 61 in which the background is skipped and the person is exposed is displayed (FIG. 15). The second candidate is BCND (2) = BH, SCND
(2) = 0, and an image 62 in which the person is a silhouette
Is displayed. The third candidate is BCND (3) = BM, SCN
Since D (3) = 1, the image 63 in the daylight sync state is displayed.

Further, the central portion 4 of the distance measuring element 4 shown in FIG.
Since the distance of the person 51 is measured in a and the distance of the mountain 52 is measured in the left side portion 4b, the distance difference Δ between the two subjects becomes larger than a predetermined value (step # 506 in FIG. 9), and step # 5.
08 is executed. In other words, the first candidate is XCND (4)
= D (1), and an image 64 in which the person 51 whose distance has been measured in the central portion 4a is focused is displayed. The second candidate is XCND (4) = MAX (D (2), D (3)) = D.
(2) is displayed, and an image 65 in which the mountain 52 measured on the left side portion 4b is focused is displayed.

Further, if the taking lens L attached is f
= 28-85 mm, if the set focal length fPRM is set to the person 51 and fPRM = 50 mm, the wide-side focal length fWD = 35 mm and the tele-side focus in steps # 605 and # 606 of FIG. Distance fTL =
Calculated as 70 mm. Therefore, the wide side focal length fW
Since both D and the telephoto side focal length fTL can be set,
Step # 610 is executed. That is, the first candidate is
fCND (6) = fWD, and the image 66 matched with the wide focal length is displayed. The second candidate is fCND (7) =
Since it is fPRM, the image 67 that matches the set focal length is displayed. The third candidate is fCND (8) = fTL, and the image 68 matched with the telephoto side focal length is displayed.

The data of the images 61 to 68 displayed in FIG. 15 corresponds to the frame No. 1 as shown in FIG. Numerical data 71 to 7 corresponding to the images 61 to 68 are stored in the electronic viewfinder 14 as numerical data.
8 can also be displayed (see FIG. 16). Further, if these data are output to the electronic notebook 15 via the external terminal 13b, storage and display can be performed by the electronic notebook 15.

FIG. 12 shows C which constitutes an embodiment of the present invention.
8 is a flowchart showing a PU selection operation subroutine.
At step # 801, the normal control values BNML, SNML,
XNML and fNML are determined by respective decision control values BANS and SAN.
Substitute in S, XANS, and fANS.

At step # 804, the frame No. k
Light around. In step # 805, it is judged whether or not the release is made. If the release is not made,
In step # 806, it is determined whether the selection switch 7 is on. When the selection switch 7 is on, 1 ≦
It is determined whether k ≦ 3.

If 1 ≦ k ≦ 3, step # 810
At the exposure control value, BCND (k) is set to BANS
In regard to the flash presence / absence control value, SCND (k) is respectively substituted into SANS. If 1 ≦ k ≦ 3 is not satisfied, then in step # 809, it is determined whether or not 4 ≦ k ≦ 5.
If ≦ k ≦ 5, the process proceeds to step # 811.

At step # 811, XCND (k) is substituted into XANS for the focus position control value. 4 ≦ k ≦
If it is not 5, in step # 812, fCND (k) is substituted into fANS for the view angle control value. This operation is performed with the frame No. Steps 1 to 8 are performed, and after 8 times, k = 0 is set and the process returns to step # 803.

If the selection switch 7 is not turned on, it is judged whether or not the designated position changeover switch 6 has been changed (# 807). If it is changed, step # 803.
Return to step # 805 if not switched.
Return to.

That is, the frame No. k (k = 1 to 8) are sequentially switched,
The switched frame No. The surrounding area of the frame No. k lights up, and the frame No. When a photograph such as the images 61 to 68 shown by k is desired to be taken, the selection switch 7 is turned on and selected.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made, which are also within the scope of the present invention. For example, while switching the pointing position selector switch 6,
It is also possible to repeat selection by the selection switch 7 and memorize it to take a plurality of photographs. Further, the images that have not been selected may be sequentially deleted. Further, selection may be made in the order of composition, focus, exposure, etc., and an image to be photographed may be created and displayed. A combination of the exposure, focus, and composition shown in FIG. 15 may be displayed.

[0077]

As described in detail above, according to the present invention, since the field of view can be observed at the same time as the shooting angle of view and the angle of view different from that of the main subject immediately before the release and in the background, unnecessary objects can be obtained. Can be prevented from entering.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a single lens reflex camera of the present invention.

FIG. 2 is a diagram showing a screen division shape of an image sensor used in an embodiment of the present invention.

FIG. 3 is a diagram showing a shape of a distance measuring frame of a distance measuring element used in an embodiment of the present invention.

FIG. 4 is a diagram showing a screen division shape of a light control element used in an embodiment of the present invention.

FIG. 5 is a CPU used in an embodiment of the present invention.
4 is a flowchart showing a main routine of FIG.

FIG. 6 is a CPU used in an embodiment of the present invention.
5 is a flowchart showing a subroutine for detection of.

FIG. 7 is a CPU used in an embodiment of the present invention.
5 is a flowchart showing a normal calculation subroutine of FIG.

FIG. 8 is a CPU used in an embodiment of the present invention.
5 is a flowchart showing a subroutine of exposure-related calculation of FIG.

FIG. 9 is a CPU used in an embodiment of the present invention.
6 is a flowchart showing a focus-related calculation subroutine of FIG.

FIG. 10 shows C used in an embodiment of the present invention.
6 is a flowchart showing a PU composition-related calculation subroutine.

FIG. 11 is a diagram showing C used in an embodiment of the present invention.
6 is a flowchart showing a PU display subroutine.

FIG. 12 shows C used in an embodiment of the present invention.
6 is a flowchart showing a PU selection subroutine.

FIG. 13 is a diagram showing an example of a shooting scene.

FIG. 14 is a diagram showing an example of numerical data display.

FIG. 15 is a diagram showing an example in which a result of executing the subroutine of FIG. 11 is displayed on an electronic viewfinder.

16 is a diagram showing control values corresponding to each frame in FIG. 15;

[Explanation of symbols]

 1 Image sensor 2 Image processing circuit 3 Multiple result prediction information display permission switch 4 Distance measuring element 5 Distance measuring circuit 6 Pointing position changeover switch 7 Selection switch 8 Light adjusting element 9 Light adjusting circuit 10 CPU 11 Optical viewfinder 12 CPU display device interface 13a , 13b External device connection connector 14 Electronic viewfinder 15 Electronic notebook 16 External storage medium interface (IF) 17 External device connection connector 18 Disk device 19 Exposure control circuit 20 Shutter 21 Film 22 Aperture 23 AF motor control circuit 24 AF motor 25 Zoom motor Control circuit 26 Zoom motor 27, 28, 29 Memory L Shooting lens

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location G03B 7/08 7316-2K 17/20 7316-2K

Claims (10)

[Claims] 1. A single-lens reflex camera having an object observing unit capable of observing an object at an angle of view different from an angle of view set by a photographer. 2. The single-lens reflex camera according to claim 1, wherein the subject observing means is provided with display permission means for permitting display at the different angle of view. 3. The single-lens reflex camera according to claim 1, wherein zoom means for zooming a photographing zoom lens, and angle-of-view control means for zooming the zoom means to set the different angle of view in the subject observing means. A single-lens reflex camera having: 4. The single lens reflex camera according to claim 2, wherein the zoom unit uses a motor as a drive source. 5. The single-lens reflex camera according to claim 3, wherein the view angle control unit controls the zoom unit to zoom the photographing zoom lens to a wide side to adjust the different view angles. A single-lens reflex camera characterized by setting. 6. The single-lens reflex camera according to claim 3, wherein the angle-of-view control unit controls the zoom unit to zoom the photographing zoom lens toward the tele side to adjust the different angle of view. A single-lens reflex camera characterized by setting. 7. The single-lens reflex camera according to claim 3, wherein the view angle control unit controls the zoom unit to zoom the photographing zoom lens to a predetermined magnification to adjust the different view angles. A single-lens reflex camera characterized by setting. 8. The single-lens reflex camera according to claim 1, wherein the view angle control means controls to move from the different view angle to the shooting view angle by operating a shutter button. SLR camera to do. 9. The single-lens reflex camera according to claim 1, wherein the divided photometry means divides the object field into two areas, and the divided photometry means is exposed by an exposure value measured in a photometric range corresponding to the shooting angle of view. A single-lens reflex camera having an exposure control unit for controlling. 10. The single-lens reflex camera according to claim 1, wherein a multi-point distance measuring unit for measuring a multi-point distance of a field, and a distance measuring range in which the multi-point distance measuring unit corresponds to the photographing field angle. A single-lens reflex camera, comprising: a focus control unit that performs focus control according to a distance measurement value measured in step 1.