Optical finder

Abstract

An optical finder having a variable field of view that changes in synchronization with zooming of an imaging lens includes a tubular finder housing having opening portions on an objective side thereof and an opening portion on an eyepiece side thereof and a field of view limiting member for limiting an aperture corresponding to the field of view from the opening portion on the eyepiece side by protruding from an inner face of the finder housing. The field of view corresponding to the aperture is increased or decreased in synchronization with zooming of the imaging lens. The field of view limiting member includes four aperture limiting members that are pressed inward from upper, lower, left, and right inner faces of the finder housing and aperture adjusting members having oblique side portions that are sandwiched between a pair of the upper and the lower aperture limiting members and between a pair of the left and the right aperture limiting members respectively.

Dependencies are inferred from the claim text.