Camera

A camera comprising:

• a camera body having a front face;
• a lens barrel protruding forward from the front face of the camera body and containing a photographic optical system;
• a grip section protruding substantially parallel to the axis of the lens barrel, from the front face of the camera body, and laterally adjoining the lens barrel, said grip section having a front end face situated substantially at right angles to the axis of the lens barrel;
• a viewfinder mechanism including an optical axis extending parallel to the axis of the lens barrel and an objective lens, and housed within the grip section;
• an autofocus optical system including an objective lens and arranged underneath the viewfinder mechanism, within the grip section;
• a strobe mechanism including a flash window and arranged in the vicinity of the autofocus optical system, within the grip section;
• and
• a battery compartment arranged in the vicinity of the viewfinder mechanism, for containing a battery, within the grip section;
• said respective objective lenses of the viewfinder mechanism and the autofocus optical system and said flash window of the strobe mechanism being provided at the front end face of the grip section.

A camera, comprising:

• a photographic optical system movable along an optical axis;
• a cam ring rotatable about the optical axis of the photographic optical system, for moving the photographic optical system along the optical axis thereof to change the focal length of the photographic optical system by rotation, said cam ring including a cylindrical body, and an interlocking member fixed to the outer peripheral surface of the body and having a gear portion extending in the form of an arc of a circle coaxial with the optical axis of the photographic optical system;
• drive means engaged with said gear portion, for rotating the cam ring;
• a viewfinder optical system having a optical axis parallel to that of the photographic optical system and a movable part arranged outside of the cam ring, in relation to the radial direction thereof, and being movable along the optical axis of the viewfinder optical system so as to change a magnification thereof;
• and
• cam means provided on the interlocking member, for moving the movable part of the viewfinder optical system along the optical axis thereof, in association with the rotation of the cam ring, the cam means having a working surface engaging the movable part and changing its configuration in the direction of the optical axis of the photographic optical system.

A camera, comprising:

• a photographic optical system movable along an optical axis;
• a cam ring rotatable within a predetermined angular range about the optical axis of the photographic optical system, for moving the photographic optical system along the optical axis thereof to change the focal length of the photographic optical system by rotation;
• drive means for rotating the cam ring;
• a viewfinder optical system having an optical axis parallel to that of the photographic optical system, a movable part arranged outside of the cam ring, in relation to the radial direction thereof, and being movable along the optical axis of the viewfinder optical system so as to change a magnification thereof, and a view frame movable in a direction perpendicular to the optical axis of the viewfinder optical system;
• cam means provided at the cam ring, for moving the movable part of the viewfinder optical system along the optical axis thereof, in association with the rotation of the cam ring;
• and
• correction means having a cam portion provided at the cam ring, for moving the view frame so as to correct parallax between the photographic optical system and the viewfinder optical system when said cam ring is rotated to one end of said angular range.