Patent ID: 6910814
Filing Date: 2005-06-28
Classification: G02B,G03B,H04N

Abstract:
1. A digital camera system having a predetermined image circle, the system comprising: a camera body: and an interchangeable lens having a lens side mount portion for attaching the interchangeable lens to said camera body and a lens side opening portion having an opening provided in the lens mount portion through which luminous flux can pass for forming an image in the image circle and allowing the forming of an image in the image circle; said camera body having an image pickup device having an imaging range with an aspect ratio of 4:3 on an imaging surface within the image circle, a body side mount portion located at a position spaced from the imaging surface by a predetermined distance and a body side opening portion having an opening provided in the body side mount portion for allowing luminous flux from the interchangeable lens to pass through, the image circle being set larger than the imaging range to include the imaging range therein, wherein the size of the opening of the body side opening portion is equal to or larger than a square formed by connecting ends of segments tilted by an angle θ with respect to an optical axis diagonally from four corners of the imaging range and extended to the opening of the body side opening portion, and the angle θ satisfies: