To stably hold a lens, to perform cleaning by easily separating a base part member and a movable member, and to maintain smoothness of a motion of a flexible lens presser.

This flexible lens presser 300 is provided with the base part member 310 mounted at a distal end of a lens holding shaft 702R, an abutting member 330 abutting on a lens rear side refraction surface and the movable member mounted with the abutting member 330 and inclinable to the base part member 310. The flexible lens presser 300 is provided with a circular-arc shaped recessed groove formed in one of the base part member 310 or the movable member and having a circular-arc shaped radius center on the center shaft of the lens holding shaft 702R and in the vicinity of an abutting surface of the abutting member 330, and a circular-arc shaped projecting part formed in the other of the base part member 310 or the movable member formed with the recessed groove to be slidably engaged in only the circular-arc direction of the recessed groove.