Patent ID: 6453126
Filing Date: 2002-09-17
Classification: G03B,H04N

Abstract:
An SLR camera system comprising:a camera body; a film back and a digital back that are selectively attached to said camera body, said film back accommodating a light-sensitive film, said digital back having an image pick-up device, wherein said camera body comprises a body mount to which an interchangeable lens is detachably attached, said body mount being guided in a direction of an optical axis of said interchangeable lens; a flange-back adjusting mechanism which moves said body mount in said optical axis direction to vary a position of a focal plane formed through said interchangeable lens so as to adjust a flange back; a focusing-screen drive mechanism which moves a focusing screen of said camera body along an optical axis of a finder optical system of said camera body; and an eyepiece drive mechanism which moves an eyepiece of said camera body along an optical axis thereof.