Abstract: An interchangeable lens (second interchangeable lens) is disclosed which allows a protruding amount from a mount reference surface of the interchangeable lens to be increased. The second interchangeable lens has a protruding portion protruding from a mount reference surface toward an image plane, has a larger protruding amount than the first interchangeable lens and has the same flange back as the first interchangeable lens. The first camera prevents mounting of the second interchangeable lens by the protruding portion of the second interchangeable lens contacting the first wall portion. The second camera includes a second wall portion provided at a position retreated from the protruding portion. The second camera includes a rotatable mirror member, and the rotation center of the mirror member is positioned on the opposite side of a finder optical system with respect to a plane including an in-plane direction of the mirror member.

Abstract: In order to display help information at the time when each of a self-timer button, an illumination button, AE lock button and the like is operated, an image pickup apparatus displays help information with understandable wording by the use of simple terms in consideration of the possibility that the user is not proficient in camera operations in the case that the apparatus operates in a full-automatic mode or a photographing mode of an image zone, and displays help information with concise and easily recognizable wording inclusive of technical terms in accordance with necessity in consideration of the possibility that the user is proficient in camera operations to a certain extent in the case that the apparatus operates in a photographing mode of a creative zone.

Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an optical member that is vibrated in a direction substantially perpendicular to an optical axis to facilitate removal of particles (e.g., dust), where the vibration of the optical member is substantially isolated from an image pickup element.

Abstract: An image pickup apparatus includes an eyepiece unit configured to facilitate viewing an optical image of an object, an image pickup element configured to convert the optical image of an object into an electrical signal, an optical member disposed in front of the image pickup element and in an imaging light axis, an piezoelectric element disposed on the side of the optical member close to the eyepiece unit, where the piezoelectric element vibrates the optical member, a biasing member disposed on the side of the optical member opposite the piezoelectric element, a lowpass filter holding member configured to hold the optical member, the piezoelectric element, and the biasing member, and an image-pickup-apparatus body chassis having a flat surface portion perpendicular to the imaging light axis, where the flat surface portion has an opening therein. The lowpass filter holding member is disposed in the opening of the body chassis.

Abstract: An imaging apparatus capable of easily removing a foreign matter adhering on an optical filter surface is disclosed. A rubber member holding an optical low pass filter seals an imaging sensor and the optical low pass filter, and a piezoelectric element vibrates an edge portion of the optical low pass filter in the direction of an optical axis, and gives the optical low pass filter a rotational force around an axis orthogonal to an imaging optical axis.

Abstract: At least one exemplary embodiment is directed to a digital single lens reflex camera which includes a motor on a side of a mirror box above a battery storage unit for a detachable battery, such that the motor's output shaft can be substantially perpendicular to the optical axis, which facilitates reduction of the size of the entire camera.

Abstract: An image pickup apparatus includes an eyepiece unit configured to facilitate viewing an optical image of an object, an image pickup element configured to convert the optical image of an object into an electrical signal, an optical member disposed in front of the image pickup element and in an imaging light axis, an piezoelectric element disposed on the side of the optical member close to the eyepiece unit, where the piezoelectric element vibrates the optical member, a biasing member disposed on the side of the optical member opposite the piezoelectric element, a lowpass filter holding member configured to hold the optical member, the piezoelectric element, and the biasing member, and an image-pickup-apparatus body chassis having a flat surface portion perpendicular to the imaging light axis, where the flat surface portion has an opening therein. The lowpass filter holding member is disposed in the opening of the body chassis.

Abstract: In order to display help information at the time when each of a self-timer button, an illumination button, AE lock button and the like is operated, an image pickup apparatus displays help information with understandable wording in use of simple terms in consideration of a possibility that a user is not proficient in camera operations in case of a full-automatic mode or a photographing mode of an image zone, and displays help information with concise and easily recognizable wording inclusive of technical terms in accordance with necessity in consideration of a possibility that a user is proficient in camera operations to a certain extent in case of a photographing mode of a creative zone.

Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an optical member that is vibrated in a direction substantially perpendicular to an optical axis to facilitate removal of particles (e.g., dust), where the vibration of the optical member is substantially isolated from an image pickup element.

Abstract: An imaging apparatus capable of easily removing a foreign matter adhering on an optical filter surface is disclosed. A rubber member holding an optical low pass filter seals an imaging sensor and the optical low pass filter, and a piezoelectric element vibrates an edge portion of the optical low pass filter in the direction of an optical axis, and gives the optical low pass filter a rotational force around an axis orthogonal to an imaging optical axis.

Abstract: At least one exemplary embodiment is directed to a digital single lens reflex camera which includes a motor on a side of a mirror box above a battery storage unit for a detachable battery, such that the motor's output shaft can be substantially perpendicular to the optical axis, which facilitates reduction of the size of the entire camera.

Abstract: An interchangeable lens (second interchangeable lens) is disclosed which allows a protruding amount from a mount reference surface of the interchangeable lens to be increased. The second interchangeable lens has a protruding portion protruding from a mount reference surface toward an image plane, has a larger protruding amount than the first interchangeable lens and has the same flange back as the first interchangeable lens. The first camera prevents mounting of the second interchangeable lens by the protruding portion of the second interchangeable lens contacting the first wall portion. The second camera includes a second wall portion provided at a position retreated from the protruding portion. The second camera includes a rotatable mirror member, and the rotation center of the mirror member is positioned on the opposite side of a finder optical system with respect to a plane including an in-plane direction of the mirror member.