JP2008022447A - Imaging apparatus and imaging program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus and a program in which shooting conditions suitable for a mounted lens unit can be set in the imaging apparatus such as a digital single-lens reflex camera in which a plurality of kinds of lens units can be freely removably mounted. <P>SOLUTION: The imaging apparatus comprises: a lens unit judging means for judging the kind of a mounted lens unit; a solid-state imaging element judging means for judging the kind of a solid-state imaging element which converts an object image formed by the lens unit into an electric signal; a shooting condition judging means for judging whether current shooting conditions are suitable ones, based on the kind of the lens unit judged by the lens unit judging means, and on the kind of the solid-state imaging element judged by the solid-state imaging element judging means; and a shooting condition setting means for resetting the shooting conditions into suitable ones in the case where the shooting condition judging means judges that the current shooting conditions are not suitable ones. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an imaging apparatus such as a digital camera and an imaging program, and more particularly, to an imaging apparatus and an imaging program capable of changing imaging conditions according to an exchanged lens unit.

  Conventionally, a silver salt film photographing and a digital image photographing are performed by selectively mounting a first back cover for shielding a silver salt film and a second back cover for mounting a solid-state image pickup device such as a CCD on a camera body. Discloses a technology relating to a silver salt film and a digital combined camera that can be selectively performed. In the silver salt film and the digital combined camera, it is possible to set an appropriate exposure amount and focusing condition when taking a digital image using a solid-state imaging device (see, for example, Patent Document 1). .)

The solid-state imaging device of the digital single-lens reflex camera includes, for example, (1) APS-C size (vertical: about 15.5 mm, horizontal: about 23.3 mm, diagonal: about 27.9 mm) solid-state imaging device (2 ) 35mm full size (vertical: 36mm, horizontal: 24mm, diagonal: 43.27mm) solid-state image sensor, and interchangeable lens units include (A) APS-C size lens unit and (B) 35mm full There is a lens unit for size, and the angle of view is also different.
Japanese Patent Laid-Open No. 2003-287782

  However, since the conventional digital single-lens reflex camera has a plurality of types of solid-state image sensors and lens units as described above, for example, (A) APS is included in a digital single-lens reflex camera including a 35 mm full-size solid-state image sensor. There is a problem in that vignetting occurs as in the case where a lens unit for -C size is mounted.

  Accordingly, the present invention has been made in view of the above problems, and in an imaging apparatus such as a digital single-lens reflex camera in which a plurality of types of lens units can be detachably attached, the imaging conditions suitable for the attached lens unit are set. An object is to provide an imaging apparatus and an imaging program that can be set.

The present invention employs the following configuration in order to solve the above problems.
That is, according to one aspect of the present invention, the imaging apparatus of the present invention is an imaging apparatus in which a plurality of types of lens units can be detachably mounted, and includes a lens unit determination unit that determines the type of the mounted lens unit. A solid-state image sensor determining means for determining a type of a solid-state image sensor for converting an object image formed by the lens unit into an electrical signal; a type of the lens unit determined by the lens unit determining means and the solid-state image sensor Based on the type of the solid-state imaging device determined by the determining unit, a shooting condition determining unit that determines whether or not the current shooting condition is an appropriate shooting condition; and the current shooting condition by the shooting condition determining unit And a shooting condition setting unit that resets the shooting condition to an appropriate shooting condition when it is determined that the shooting condition is not an appropriate shooting condition. And wherein the door.

  In the imaging apparatus of the present invention, when the shooting condition setting unit determines that vignetting occurs, the shooting condition setting unit resets the shooting condition so as to cut out only an area where no vignetting occurs. It is desirable.

  In the image pickup apparatus of the present invention, it is preferable that the shooting condition setting unit resets the shooting condition to an appropriate flash emission amount when the shooting condition determination unit determines that the flash emission amount is not appropriate. .

  In the imaging apparatus of the present invention, it is preferable that the imaging condition setting unit resets the imaging condition to an appropriate lens hood amount when the imaging condition determination unit determines that the lens hood amount is not appropriate. .

  In the imaging apparatus according to the aspect of the invention, it is preferable that the imaging condition setting unit resets the imaging condition to an appropriate lens movement range when the imaging condition determination unit determines that the lens movement range is not appropriate. .

  Further, according to one aspect of the present invention, the program according to the present invention includes a computer, a lens unit determining unit that determines the type of a lens unit that is mounted, and a solid that converts a subject image formed by the lens unit into an electrical signal. A solid-state image sensor determining means for determining the type of the image sensor; based on the type of the lens unit determined by the lens unit determining means and the type of the solid-state image sensor determined by the solid-state image sensor determining means; A shooting condition determining unit that determines whether or not the shooting condition is an appropriate shooting condition; and when the shooting condition determining unit determines that the current shooting condition is not an appropriate shooting condition, the shooting condition is determined to be an appropriate shooting condition. This is an imaging program for functioning as an imaging condition setting unit that resets the conditions.

  According to the present invention, in an imaging apparatus such as a digital single-lens reflex camera in which a plurality of types of lens units can be detachably mounted, it is possible to set shooting conditions suitable for the mounted lens unit.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram for explaining the outline of the present invention.
In FIG. 1, an imaging device 10A is a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD, and the imaging device 10B has a solid-state imaging device such as a 35 mm full size CCD. It is a digital SLR camera. The imaging device 10A and the imaging device 10B have a plurality of types of lens units 41 (for example, an APS-C size lens unit) and lens units 42 (for example, a 35 mm full size lens) having the same diameter but different lengths. Unit) can be detachably mounted.

  Then, the imaging device 10A and the imaging device 10B read RFID (Radio Frequency IDentification) incorporated in the imaging device 10A or the imaging device 10B, respectively, for identifying the imaging device 10A or the imaging device 10B itself, and are exchanged. The RFID for identifying the lens unit 41 or the lens unit 42 incorporated in the lens unit 41 or the lens unit 42 is read, and the photographing conditions are changed according to these.

FIG. 2 is a diagram illustrating a hardware configuration of an imaging apparatus to which the present invention is applied.
In FIG. 2, an imaging apparatus 10 </ b> A and an imaging apparatus 10 </ b> B are respectively input with a CPU (Central Processing Unit) 11, input related to shooting such as power on / off, shutter, zoom, and various data and signals. In addition to a program for executing an imaging process executed by the input unit 12, the imaging device 10A or the imaging device 10B, a memory 13 storing a control program for controlling and executing each function of the imaging device 10A or the imaging device 10B, For the purpose of downloading the program or transferring the captured image to a personal computer or the like, the transmission control unit 14 for connecting to a network such as a LAN, the information output from the program, the image to be captured and other information are displayed. Display unit 15, an imaging unit 16 that captures an image of an object, and an image captured by the imaging unit 16 First, the recording unit 17 for recording various information, the RFID incorporated in the imaging device 10A or the imaging device 10B, and the RFID recognition unit 18 for recognizing the RFID incorporated in the lens unit 41 or the lens unit 42 are provided on the bus 19. The CPU 11 controls each of these units including the control program in the memory 13 and the control of the imaging unit 16.

  The imaging device 10A and the imaging device 10B including the hardware as described above each have a lens unit determination unit, a solid-state image sensor determination unit, a shooting condition determination unit, and a shooting condition setting as functions for realizing the present invention. Means.

  The lens unit determination unit determines the type of the mounted lens unit, for example, by reading an RFID incorporated in the lens unit 41 or the lens unit 42.

  For example, the solid-state imaging element determination unit determines the type of the solid-state imaging element that converts the subject image formed by the lens unit into an electrical signal by reading an RFID incorporated in the imaging apparatus 10A or the imaging apparatus 10B.

  The imaging condition determining unit is configured to capture an image with appropriate current imaging conditions based on the type of the lens unit determined by the lens unit determining unit and the type of the solid-state image sensor determined by the solid-state image sensor determining unit. Determine whether the condition is met.

The imaging condition setting unit resets the imaging condition to an appropriate imaging condition when the imaging condition determining unit determines that the current imaging condition is not an appropriate imaging condition.
FIG. 3 is a diagram showing an outline of an imaging apparatus to which the present invention is applied.

  In FIG. 3, an imaging apparatus 10 </ b> A and an imaging apparatus 10 </ b> B such as a digital single-lens reflex camera have an optical system drive for driving the lens unit 41 or the lens unit 42, the diaphragm 22, the lens unit 41 or the lens unit 42 and the diaphragm 22, respectively. Unit 24, CCD (charge coupled device) 23 which is a solid-state imaging device, a CDS (correlated double sampling) circuit for sampling an electric signal output from the CCD 23, and a variable gain amplifier (AGC) for amplifying an electric signal output from the CDS circuit Amplifier: VG (variable) amplifier) analog processing unit 27, CCD 23 and capture control unit 26 for controlling analog processing unit 27, and electrical signals output from analog processing unit 27 are A / D (analog / digital) A / D converter 28, A for converting and outputting digital image data Buffer 29 for temporarily storing the image data output from D converter 28, the signal processing circuit 30 and the compression and expansion circuit 31 or compression or expanding image data, it is connected via a bus 19.

FIG. 4 is a flowchart showing a main flow of imaging processing executed in the imaging apparatus to which the present invention is applied.
First, when the power is turned on, a mode selection screen in which a list of modes is displayed on the display unit 15 is displayed. In step S41, a shooting mode and other various modes are selected by operating the input unit 12. In step S42, an analysis is performed to determine whether the mode selected in step S41 is the shooting mode or another mode.

  In step S43, it is determined whether or not the mode analyzed in step S42 is the shooting mode. If it is determined that the shooting mode is not selected (step S43: No), processing corresponding to the designated mode is executed in step S44. For example, when the reproduction mode is designated, the folder storing the image to be reproduced is designated and the corresponding image is reproduced and displayed. Alternatively, other processing such as setting of flash emission is performed.

  Next, in step S45, whether or not mode switching has been performed by operating the input unit 12, that is, whether or not mode switching has been performed from the current mode to the shooting mode or to another mode other than the current mode. Judge whether or not. If it is determined that the mode switching has been executed (step S45: Yes), the process returns to step S42. If it is determined that the mode switching has not been executed (step S45: No), in step S46, the main It is determined whether or not to end the imaging process. If it is determined not to end (step S46: No), the process returns to step S44. If it is determined to end, the main power is turned off by operating the power key, for example. When instructed (step S46: Yes), the imaging process ends.

  On the other hand, if it is determined in step S43 that the camera is in the shooting mode (step S43: Yes), in step S47, the RFID incorporated in the imaging device 10A or the imaging device 10B is read, and information on the imaging device 10A or the imaging device 10B is read. (Type) is acquired, and whether or not the RFID acquired in Step S47 is an ID indicating the imaging apparatus 10A (for example, a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD) in Step S48. (Is it an ID indicating an imaging device 10B (for example, a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full-size CCD))?

  When it is determined in step S48 that the RFID acquired in step S47 is an ID indicating the imaging apparatus 10A, that is, a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD (step S48: Yes). In step S49, it is stored in the memory 13 that it is a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD, and the RFID acquired in step S47 is the imaging device 10B, that is, a 35 mm full size CCD. If it is determined in step S48 that the ID indicates a digital single-lens reflex camera having a solid-state image sensor such as (step S48: No), in step S50, the digital single-lens having a solid-state image sensor such as a 35 mm full-size CCD is obtained. Memorize that it is a reflex camera in the memory 13 That.

  Next, in step S51, the RFID incorporated in the lens unit 41 or the lens unit 42 attached to the imaging device 10A or the imaging device 10B is read, and information (type) of the lens unit 41 or the lens unit 42 is acquired. In S52, the RFID acquired in step S51 is an ID indicating whether the lens unit 41 (for example, an APS-C size lens unit) is an ID (for example, the lens unit 42 (for example, a 35 mm full size lens unit)). Judgment)

  When it is determined in step S52 that the RFID acquired in step S51 is an ID indicating the lens unit 41, that is, an APS-C size lens unit (step S52: Yes), in step S53, for APS-C size. When it is determined in step S52 that the RFID stored in the memory 13 is an ID indicating the lens unit 42, that is, a 35 mm full-size lens unit, is stored in the memory 13 as a lens unit (step S52: No) Stores in the memory 13 that it is a 35 mm full-size lens unit in step S54.

Next, in step S55, a subroutine “hood movement process” is executed, and in step S56, a subroutine “limiter handling process” is executed.
FIG. 5 is a flowchart showing the flow of the subroutine “hood movement process”, and FIG. 6 is a diagram showing the relationship between the camera hood and the solid-state imaging device.

  First, in step S71, whether or not the RFID acquired in step S47 of FIG. 4 is an ID indicating the imaging apparatus 10B (for example, a digital single-lens reflex camera having a solid-state imaging element such as a 35 mm full-size CCD) (imaging apparatus). 10A (for example, an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD) is determined. Then, when it is determined in step S71 that the RFID acquired in step S47 of FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full-size CCD (step S71: Yes), it continues. In step S72, whether or not the RFID acquired in step S51 of FIG. 4 is an ID indicating the lens unit 41 (for example, an APS-C size lens unit) (lens unit 42 (for example, a 35 mm full size lens unit)). Whether or not the ID is an ID.

  If it is determined in step S72 that the RFID acquired in step S51 of FIG. 4 is not an ID indicating an APS-C size lens unit (step S72: No), that is, the RFID acquired in step S47 of FIG. 4 is 35 mm. When it is determined that the ID indicates a digital single-lens reflex camera having a solid-state image sensor such as a full-size CCD, and the RFID acquired in step S51 of FIG. 4 is an ID indicating a 35 mm full-size lens unit. In step S73, the moving amount of the camera hood is set as the moving amount for 35 mm full size (see FIG. 6B).

  On the other hand, when it is determined in step S71 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as an APS-C size CCD (step S71: No), or If it is determined in step S72 that the RFID acquired in step S51 of FIG. 4 is an ID indicating an APS-C size lens unit (step S72: Yes), the movement for APS-C size is performed in step S74. The amount of movement of the camera hood is set as the amount (see FIG. 6A).

  In step S75, the camera hood is moved by the movement amount of the camera hood set in step S73 or step S74. Accordingly, the camera hood can be automatically moved to a position where sunlight is blocked and vignetting does not occur.

FIG. 7 is a flowchart showing a flow of a subroutine “limiter handling process”.
First, in step S81, if the lens unit 41 or the lens unit 42 attached to the imaging device 10A or the imaging device 10B is a zoom lens, it is determined whether or not a limit switch 43 for limiting the zoom range is turned on. To do.

FIG. 8 is a diagram for explaining a limit switch of the zoom lens.
As shown in FIG. 8, the limit switch 43 is, for example, installed at a predetermined position of the lens unit 41 or the lens unit 42 main body, and in the entire focus range from the minimum value to the maximum value of the focus distance as an original performance. This is a switch for switching between a full range (FULL) that enables the change of the focus position and a limit range (LIMIT) that allows the change only from the minimum value of the focus distance, which is inherent performance, to a predetermined limited value.

FIG. 9 is a table showing a range of focal lengths by the limit switch of the zoom lens.
As shown in FIG. 9, when the lens unit 42 is a 35 mm full-size lens unit, if the limit switch 43 is in the limit (LIMIT) position, autofocus control is performed in the range of 1 cm to 20 cm, and the limit switch 43 is If the position is full (FULL), autofocus control is performed in a range from 1 cm to ∞ (infinity). Further, when the mounted lens unit 41 is an APS-C size lens unit, if the limit switch 43 is in the limit (LIMIT) position, autofocus control is performed in a range of 1.5 cm to 30 cm, and the limit switch 43 is When the position is full (FULL), autofocus control is performed in a range from 1.5 cm to ∞ (infinity).

  Returning to the description of FIG. 7, if it is determined in step S81 that the limit switch 43 is turned on (tilted to the limit side) (step S81: Yse), in step S82, in step S47 of FIG. Whether or not the acquired RFID is an ID indicating the imaging device 10B (for example, a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full size CCD) (imaging device 10A (for example, an APS-C size CCD or the like) Whether the ID indicates a digital single-lens reflex camera having a solid-state imaging device). Then, when it is determined in step S82 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full-size CCD (step S82: Yes), it continues. In step S83, whether or not the RFID acquired in step S51 of FIG. 4 is an ID indicating the lens unit 41 (for example, an APS-C size lens unit) (lens unit 42 (for example, a 35 mm full size lens unit)). Whether or not the ID is an ID.

  If it is determined in step S83 that the RFID acquired in step S51 of FIG. 4 is not an ID indicating an APS-C size lens unit (step S83: No), that is, the RFID acquired in step S47 of FIG. 4 is 35 mm. When it is determined that the ID indicates a digital single-lens reflex camera having a solid-state image sensor such as a full-size CCD, and the RFID acquired in step S51 of FIG. 4 is an ID indicating a 35 mm full-size lens unit. In step S84, control is performed with a limit range value of 35 mm full size.

  On the other hand, if it is determined in step S82 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as an APS-C size CCD (step S82: No), or When it is determined in step S83 that the RFID acquired in step S51 of FIG. 4 is an ID indicating an APS-C size lens unit (step S83: Yes), the limit range of the APS-C size is determined in step S85. Control by value.

  If it is determined in step S81 that the limit switch 43 is turned off (tilted to the full side) (step S81: No), the RFID acquired in step S47 of FIG. 4 is imaged in step S86. Whether or not the ID indicates the apparatus 10B (for example, a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full size CCD) (imaging device 10A (for example, having an APS-C size solid-state imaging device such as a CCD) Whether the ID indicates a digital single-lens reflex camera). Then, when it is determined in step S86 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as a 35 mm full-size CCD (step S86: Yes), it continues. In step S87, whether or not the RFID acquired in step S51 of FIG. 4 is an ID indicating the lens unit 41 (for example, an APS-C size lens unit) (lens unit 42 (for example, a 35 mm full size lens unit)). Whether or not the ID is an ID.

  If it is determined in step S87 that the RFID acquired in step S51 of FIG. 4 is not an ID indicating an APS-C size lens unit (step S87: No), that is, the RFID acquired in step S47 of FIG. 4 is 35 mm. When it is determined that the ID indicates a digital single-lens reflex camera having a solid-state image sensor such as a full-size CCD, and the RFID acquired in step S51 of FIG. 4 is an ID indicating a 35 mm full-size lens unit. In step S88, the full range value of 35 mm full size is controlled.

  On the other hand, if it is determined in step S86 that the RFID acquired in step S47 of FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as an APS-C size CCD (step S86: No), or When it is determined in step S87 that the RFID acquired in step S51 of FIG. 4 is an ID indicating an APS-C size lens unit (step S87: Yes), the full range value of the APS-C size is determined in step S89. To control.

  Returning to the description of FIG. 4, it is determined in step S57 whether or not the shutter has been pressed (operated). If it is determined that the shutter has been operated (step S57: Yes), the subroutine “flash” is determined in step S58. Control process "is executed.

  FIG. 10 is a flowchart showing the flow of the subroutine “flash control processing”, FIG. 11 is a diagram showing the relationship between the lens unit and the angle of view, and FIG. 12 is a diagram for explaining the difference in light emission amount. FIG. 13 is a diagram illustrating a relationship between the lens unit and the light emission amount.

  First, in step S101, whether or not the RFID acquired in step S47 of FIG. 4 is an ID indicating the imaging apparatus 10B (for example, a digital single-lens reflex camera having a solid-state imaging element such as a 35 mm full-size CCD) (imaging apparatus). 10A (for example, an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD) is determined. Then, when it is determined in step S101 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as a 35 mm full-size CCD (step S101: Yes), it continues. In step S102, whether or not the RFID acquired in step S51 of FIG. 4 is an ID indicating the lens unit 41 (for example, an APS-C size lens unit) (lens unit 42 (for example, a 35 mm full size lens unit)). Whether or not the ID is an ID.

  If it is determined in step S102 that the RFID acquired in step S51 of FIG. 4 is not an ID indicating an APS-C size lens unit (step S102: No), that is, the RFID acquired in step S47 of FIG. 4 is 35 mm. When it is determined that the ID indicates a digital single-lens reflex camera having a solid-state image sensor such as a full-size CCD, and the RFID acquired in step S51 of FIG. 4 is an ID indicating a 35 mm full-size lens unit. In step S103, the light emission amount for 35 mm full size corresponding to the angle of view is set.

  On the other hand, if it is determined in step S101 that the RFID acquired in step S47 of FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD (step S101: No), or 4, when it is determined in step S102 that the RFID acquired in step S51 in FIG. 4 is an ID indicating an APS-C size lens unit (step S102: Yes), in step S104, the APS− according to the angle of view. The light emission amount for C size is set.

  As shown in FIG. 11, the light-receiving surface of a solid-state image sensor such as an APS-C size CCD is smaller than the light-receiving surface of a solid-state image sensor such as a 35 mm full-size CCD, so that the subject can be reflected in a range. Since it is trimmed to about two-thirds, as shown in FIG. 12, the amount of light emitted from the flash is the amount of light required by a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD (see FIG. 12). 12 (A)), the amount of light emission (FIG. 12B) required for a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full size CCD needs to be large.

  In step S105, the light emission amount set in step S103 or step S104, for example, as shown in FIG. 13, when the distance to the subject is 2 m, 15 GN (guide number) for 35 mm full size, APS- For C size, flash-on with a light emission of 10GN.

  Returning to the description of FIG. 4, in step S59, image data captured by controlling the imaging unit 16 is captured, and in step S60, a subroutine “vignetting process” is executed.

FIG. 14 is a flowchart showing a flow of a subroutine “vignetting process”.
First, in step S141, whether or not the RFID acquired in step S47 of FIG. 4 is an ID indicating the imaging device 10B (for example, a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full-size CCD) (imaging device). 10A (for example, an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as an APS-C size CCD) is determined. Then, when it is determined in step S141 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full-size CCD (step S141: Yes), it continues. In step S142, whether or not the RFID acquired in step S51 of FIG. 4 is an ID indicating the lens unit 41 (for example, an APS-C size lens unit) (lens unit 42 (for example, a 35 mm full size lens unit)). Whether or not the ID is an ID.

  If it is determined in step S142 that the RFID acquired in step S51 in FIG. 4 is an ID indicating an APS-C size lens unit (step S142: Yes), that is, the RFID acquired in step S47 in FIG. It is an ID indicating a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full size CCD, and the RFID acquired in step S51 of FIG. 4 is determined to be an ID indicating a lens unit for APS-C size. In such a case, since vignetting occurs, in step S143, after executing the subroutine “vignetting deletion processing”, the process proceeds to step S61 in FIG.

  Vignetting appears on the screen when a lens unit such as an APS-C size lens unit is attached to a camera such as a digital single-lens reflex camera having a solid-state image sensor such as a 35 mm full size CCD. It's a black flank. As described above with reference to FIG. 11, the light-receiving surface of a solid-state imaging device such as an APS-C size CCD is smaller than the light-receiving surface of a solid-state imaging device such as a 35 mm full size CCD (FIG. 15A). Although vignetting does not occur, vignetting occurs when the APS-C size lens unit is attached to a digital single-lens reflex camera having a solid-state imaging device such as a 35 mm full size CCD (FIG. 15B). reference).

  On the other hand, if it is determined in step S141 that the RFID acquired in step S47 in FIG. 4 is an ID indicating a digital single-lens reflex camera having a solid-state image sensor such as an APS-C size CCD (step S141: No), or When it is determined in step S142 that the RFID acquired in step S51 of FIG. 4 is an ID indicating a 35 mm full-size lens unit (step S142: No), the process proceeds to step S61 of FIG.

FIG. 16 is a flowchart showing a flow of a subroutine “vignetting deletion process”.
First, in step S161, it is analyzed whether or not the four corners of the image captured in step S59 in FIG. 4 are black. In step S162, it is determined whether or not the four corners are black.

If it is determined that the four corners are black (step S162: Yes), in step S163, the image captured in step S59 of FIG.
FIG. 17 is a diagram for explaining vignetting deletion.

  In FIG. 17, the images captured by the solid-state imaging device (35 mm full-size solid-state imaging device) 61 are pixels A1 to A16, B1 to B16, C1 to C16, D1 to D16, E1 to E16, F1 to F16, and G1. Through G16, H1 through H16, I1 through I16, J1 through J16, K1 through K16, L1 through L16, M1 through M16, N1 through N16, O1 through O16, and P1 through P16. Among these, the pixels A1, A2, A3, B1, C1, the pixels A14, A15, A16, B16, C16, and the pixels N1, O1, P1 including four pixels at the four corners of the pixels A1, A16, P1, and P16. , P2, P3 and pixels N16, O16, P16, P15, and P14 are black, and except for at least these 20 pixels, pixels B2 to B15, C2 to C15, D2 to D15, E2 to E15, F2 to F15, G2 to G15, H2 to H15, I2 to I15, J2 to J15, K2 to K15, L2 to L15, M2 to M15, N2 to N15, and O2 to O15 are cut out.

  Returning to the description of FIG. 4, in step S61, the image data captured in step S59 and corresponding to vignetting is stored in the captured image recording area or recording medium of the recording unit 17 by the subroutine “vignetting handling processing”, and the process returns to step S57.

  On the other hand, when it is determined in step S57 that the shutter is not pressed (step S57: No), in step S62, whether or not mode switching has been executed by the operation of the input unit 12, that is, from the current shooting mode. It is determined whether or not the mode has been switched to a mode other than the shooting mode. If it is determined that the mode has been switched (step S62: Yes), in step S63, the type of the solid-state imaging device, the type of the lens unit, the position information of the camera hood, etc. stored in the memory 13 are initialized. After returning to step S42, the process returns to step S42, and when it is determined that the mode is not switched (step S62: No), in step S64, it is determined whether or not the main imaging process is ended, and the process is not ended. Is determined (step S64: No), the process returns to step S57, and when it is determined that the process is to be ended, for example, when the main power supply is turned off by operating the power key (step S64: Yes), the main imaging is performed. The process ends.

  As described above, the embodiments of the present invention have been described with reference to the drawings. However, the above-described embodiments of the present invention may be hardware, a DSP (Digital Signal Processor) board, or a CPU board as a function of the imaging apparatus. It can be realized by firmware or software.

  In addition, the imaging apparatus to which the present invention is applied is not limited to the above-described embodiment as long as the function is executed. Needless to say, the apparatus may be a system that performs processing via a network such as a LAN or a WAN.

  It can also be realized by a system including a CPU, a ROM or RAM memory connected to a bus, an input device, an output device, an external recording device, a medium driving device, and a network connection device. That is, a ROM or RAM memory, an external recording device, or a portable recording medium that records a software program for realizing the system of the above-described embodiment is supplied to the imaging device, and the computer of these imaging devices executes the program. Needless to say, this can also be achieved by executing read.

  In this case, the program itself read from the portable recording medium or the like realizes the novel function of the present invention, and the portable recording medium or the like on which the program is recorded constitutes the present invention.

  Examples of portable recording media for supplying the program include flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, DVD-ROMs, DVD-RAMs, magnetic tapes, and nonvolatile memory cards. Various recording media recorded via a network connection device (in other words, a communication line) such as a ROM card, electronic mail or personal computer communication can be used.

  The computer (information processing apparatus) executes the program read out on the memory, thereby realizing the functions of the above-described embodiment, and an OS running on the computer based on the instructions of the program. Performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

  Furthermore, a program read from a portable recording medium or a program (data) provided by a program (data) provider is stored in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. After being written, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are also realized by the processing. obtain.

  That is, the present invention is not limited to the embodiment described above, and can take various configurations or shapes without departing from the gist of the present invention.

It is a figure for demonstrating the outline | summary of this invention. It is a figure which shows the hardware constitutions of the imaging device to which this invention is applied. It is a figure which shows the outline of a structure of an imaging device. It is a flowchart which shows the main flow of the imaging process performed in the imaging device to which this invention is applied. It is a flowchart which shows the flow of a subroutine "hood movement process." It is a figure which shows the relationship between a camera hood and a solid-state image sensor. It is a flowchart which shows the flow of a subroutine "limiter corresponding | compatible process." It is a figure for demonstrating the limit switch of a zoom lens. It is the figure which made the table the range of the focal length by the limit switch of a zoom lens. It is a flowchart which shows the flow of subroutine "flash control processing." It is a figure which shows the relationship between a lens unit and a field angle. It is a figure for demonstrating the difference in emitted light amount. It is a figure which shows the relationship between a lens unit and light emission amount. It is a flowchart which shows the flow of a subroutine "vignetting process." It is a figure for explaining vignetting. It is a flowchart which shows the flow of a subroutine "vignetting deletion process." It is a figure for demonstrating deletion of vignetting. FIG.

Explanation of symbols

10A, 10B Imaging device 11 CPU
DESCRIPTION OF SYMBOLS 12 Input part 13 Memory 14 Transmission control part 15 Display part 16 Imaging part 17 Recording part 18 RFID recognition part 19 Bus 22 Aperture 23 CCD
24 Optical System Drive Unit 26 Capture Control Unit 27 Analog Processing Unit 28 A / D Conversion Unit 29 Buffer 30 Signal Processing Unit Circuit 31 Compression / Expansion Circuit 41 Lens Unit (APS-C Size Lens Unit)
42 Lens unit (35mm full size lens unit)
43 Limit switch 51 Camera hood (35mm full size camera hood)
52 Camera Hood (APS-C size camera hood)
61 Solid-state image sensor (35mm full-size solid-state image sensor)
62 Solid-state image sensor (APS-C size solid-state image sensor)

Claims (6)

An imaging device capable of detachably attaching a plurality of types of lens units,
Lens unit judging means for judging the type of the mounted lens unit;
A solid-state image sensor determining means for determining a type of a solid-state image sensor that converts an object image formed by the lens unit into an electrical signal;
Whether or not the current shooting condition is an appropriate shooting condition based on the type of the lens unit determined by the lens unit determination unit and the type of the solid-state image sensor determined by the solid-state image sensor determination unit Photographing condition judging means for judging
An imaging condition setting unit that resets the imaging condition to an appropriate imaging condition when the imaging condition determination unit determines that the current imaging condition is not an appropriate imaging condition;
An imaging apparatus comprising:   The imaging condition setting means resets the imaging conditions so as to cut out only an area where no vignetting occurs when the shooting condition determining means determines that vignetting occurs. The imaging device described.   3. The photographing condition setting unit, according to claim 1, wherein the photographing condition determining unit resets the photographing condition to an appropriate flash light amount when it is determined that the flash light amount is not appropriate. Imaging device.   4. The imaging condition setting unit according to claim 1, wherein when the imaging condition determination unit determines that the lens hood amount is not appropriate, the imaging condition setting unit resets the imaging condition to an appropriate lens hood amount. The imaging apparatus of Claim 1.   5. The imaging condition setting unit, according to any one of claims 1 to 4, wherein when the imaging condition determining unit determines that the lens movement range is not appropriate, the imaging condition setting unit resets the imaging condition to an appropriate lens movement range. The imaging apparatus of Claim 1. Computer
Lens unit judging means for judging the type of the mounted lens unit;
A solid-state image sensor judging means for judging the type of the solid-state image sensor for converting the subject image formed by the lens unit into an electrical signal;
Whether or not the current shooting condition is an appropriate shooting condition based on the type of the lens unit determined by the lens unit determination unit and the type of the solid-state image sensor determined by the solid-state image sensor determination unit Photographing condition judging means for judging
An imaging condition setting unit that resets the imaging condition to an appropriate imaging condition when the imaging condition determination unit determines that the current imaging condition is not an appropriate imaging condition;
Imaging program to function as