| 摘要 |
The present invention relates to a digital camera system (1) having a predetermined image circle. The system comprises: an interchangeable lens (12), which can form an image within the image circle, the lens having a lens side mount portion (37) for mounting the interchangeable lens to a camera body (11) and a lens side opening portion provided in the lens side mount portion for allowing luminous flux for forming an image in the image circle to pass through; and a camera body (11) having an image pickup device (27) having an imaging range, a body side mount portion (47) provided at a position apart from the imaging surface by a predetermined distance, and a body side opening portion (41a) provided in the body side mount portion, for allowing luminous flux from the interchangeable lens to pass through. The body side opening portion (41a) satisfies: Dm/Di ‰¥ 1.8, where the minimum circle diameter including the opening portion is Dm and the diameter of the image circle is Di. The invention also relates to a digital camera body (11) for such a system to which an interchangeable lens (12) having a predetermined image circle can be removably mounted, and to an interchangeable lens (12) removably mounted to a digital camera body (11).
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