Apparatus for partially intercepting light in finder of camera

摘要

A light interceptor for a viewfinder having a finder block in a camera includes mask elements formed of a flexible thin plate to vary the size of the field frame of the viewfinder. A selection switch is actuated to vary the size of the field frame and a power transmission mechanism is provided to move the mask elements along the finder block in association with a position of the selection switch. A guide member is provided to guide movement of a front or rear end of the mask elements in a direction perpendicular to the optical axis of the viewfinder along the surfaces of the finder block.