A focal plane shutter has a base plate with an opening; a leading and trailing blade opening and closing the opening; a leading blade driver; a trailing blade driver; a charging portion; a braking member; and a brake driver. The leading blade driver drives the leading blade through a first biasing force of a first biasing member and drives the leading blade through a second biasing force of a second biasing member. The trailing blade driver drives the trailing blade by a third biasing force of a third biasing member. The charging portion applies the second biasing force to the second biasing member and applies the third biasing force to the third biasing member. The braking member brakes the leading blade through friction and the brake driver moves the braking member to brake the leading blade, independently of the leading blade driver, the trailing blade driver, and the charging portion.

A focal plane shutter has a base plate with an opening; a leading and trailing blade opening and closing the opening; a leading blade driver; a trailing blade driver; a charging portion; a braking member; and a brake driver. The leading blade driver drives the leading blade through a first biasing force of a first biasing member and drives the leading blade through a second biasing force of a second biasing member. The trailing blade driver drives the trailing blade by a third biasing force of a third biasing member. The charging portion applies the second biasing force to the second biasing member and applies the third biasing force to the third biasing member. The braking member brakes the leading blade through friction and the brake driver moves the braking member to brake the leading blade, independently of the leading blade driver, the trailing blade driver, and the charging portion.

An imaging apparatus includes a controller configured to control a motor and an image sensor. The controller rotates the motor in a first direction as reading of a signal corresponding to first imaging starts for one frame using the image sensor, and charges the first urging member and the blade member. The controller rotates the motor in a second direction reverse to the first direction after a charge of the blade member by the first urging member is completed, completes reading the signal corresponding to the first imaging before opening the exposure opening, and stops rotating the motor in the second direction.

An imaging apparatus includes a controller configured to control a motor and an image sensor. The controller rotates the motor in a first direction as reading of a signal corresponding to first imaging starts for one frame using the image sensor, and charges the first urging member and the blade member. The controller rotates the motor in a second direction reverse to the first direction after a charge of the blade member by the first urging member is completed, completes reading the signal corresponding to the first imaging before opening the exposure opening, and stops rotating the motor in the second direction.

A shutter apparatus includes a shutter base plate having an opening, a light shield movable between a closed state for closing the opening and an open state for opening the opening, a cam member rotatable in a first angle range, a second angle range, and a third angle range between the first angle range and the second angle range, the cam member that rotates in the third angle range rotating the light shield, a motor configured to drive the cam member, a forcing member configured to force the cam member so as to rotate the cam member from the first angle range to the third angle range, and a restricting member configured to restrict the forcing member from forcing the cam member in at least part of the first angle range.

A shutter apparatus includes a shutter base plate having an opening, a light shield movable between a closed state for closing the opening and an open state for opening the opening, a cam member rotatable in a first angle range, a second angle range, and a third angle range between the first angle range and the second angle range, the cam member that rotates in the third angle range rotating the light shield, a motor configured to drive the cam member, a forcing member configured to force the cam member so as to rotate the cam member from the first angle range to the third angle range, and a restricting member configured to restrict the forcing member from forcing the cam member in at least part of the first angle range.

An imaging apparatus is provided, including a blade-driving device and a driving control unit which drives the front curtain actuator and the rear curtain actuator. The front curtain and the rear curtain are positioned at the open position at a time of start and termination of imaging, in which the front curtain moves from the closing position to the open position, and the rear curtain moves from the open position to the closing position, thereby performing an exposure operation. During consecutive photographing, the front curtain positioned at the closing position is moved once in a direction of the open position and is then returned to the closing position after the rear curtain is moved to the open position after termination of the exposure operation, and before a subsequent exposure operation is performed.

An imaging apparatus is provided, including a blade-driving device and a driving control unit which drives the front curtain actuator and the rear curtain actuator. The front curtain and the rear curtain are positioned at the open position at a time of start and termination of imaging, in which the front curtain moves from the closing position to the open position, and the rear curtain moves from the open position to the closing position, thereby performing an exposure operation. During consecutive photographing, the front curtain positioned at the closing position is moved once in a direction of the open position and is then returned to the closing position after the rear curtain is moved to the open position after termination of the exposure operation, and before a subsequent exposure operation is performed.

An image pickup apparatus which satisfactorily compensates for a flash band appearing due to an external flash and prevents a row insensitive to the flash from appearing in a corrected image. The flash band appearing in a plurality of frames consecutive in terms of time is detected based on an image signal output from an image pickup device which sequentially starts exposure and sequentially reads out signals for each row of pixels. An image in at least one of those frames is corrected to a full-screen flash image. When a width of the flash band is smaller than the number of rows in one frame, a row in which the flash band does not appear is interpolated using a row in which the flash band appears and which immediately precedes or immediately succeeds the row in which the flash band does not appear.

An image pickup apparatus which satisfactorily compensates for a flash band appearing due to an external flash and prevents a row insensitive to the flash from appearing in a corrected image. The flash band appearing in a plurality of frames consecutive in terms of time is detected based on an image signal output from an image pickup device which sequentially starts exposure and sequentially reads out signals for each row of pixels. An image in at least one of those frames is corrected to a full-screen flash image. When a width of the flash band is smaller than the number of rows in one frame, a row in which the flash band does not appear is interpolated using a row in which the flash band appears and which immediately precedes or immediately succeeds the row in which the flash band does not appear.