Patent ID: 7414660
Filing Date: 2008-08-19
Classification: G03B

Abstract:
1. A lens-interchangeable digital camera system, comprising: a first camera body including a first image pickup element having a pixel pitch of about 7 μm and a first optical low pass filter having a thickness determined based on the pixel pitch of about 7 μm; an interchangeable lens removably attached to the first camera body and having a function for correcting a curvature-of-field aberration on an image-forming surface of the image pickup element; and a second camera body including a second image pickup element to which the interchangeable lens can be removably attached, having a pixel pitch different from the pixel pitch of about 7 μm and a greater number of pixels than that of the first image pickup element, a second optical low pass filter having a thickness determined in accordance with the pixel pitch of the second image pickup element and being thinner than the first optical low pass filter, and a compensating optical system for correcting a difference in optical path length caused due to the difference in thickness of the first optical low pass filter and second optical low pass filter.