Patent ID: 7352516

Claim:
A lens apparatus comprising: a first holding member which holds a first lens unit; a second holding member which holds a second lens unit disposed closer to an image plane side than the first lens unit; a first cam barrel which includes a first cam portion driving the first holding member in an optical axis direction; a second cam barrel which includes a second cam portion driving the first cam barrel in the optical axis direction; and a third cam barrel member different from the second cam barrel, which includes a third cam portion driving the second holding member in the optical axis direction, wherein the lens apparatus can perform a zoom operation in a state where the lens apparatus protrudes from a main body and perform a housing operation in which the lens apparatus is housed into the main body, wherein the first and second cam portions have shapes for moving the first holding member during the zoom operation along a trajectory which is convex toward one side of the optical axis direction, and wherein the third cam portion has a shape for moving the second holding member during the zoom operation along a trajectory different from the moving trajectory of the first holding member.