Camera: In a 35.0-mm single lens reflex camera (SLR), the distance from the lens to the film is varied in order to focus on objects at varying distances. Over what distance range must a lens of 55-mm focal length vary if the camera is to be able to focus on objects ranging in distance from infinity down to 0.60 m from the camera?

Question

Quizplus · Accepted Answer

The lens-to-film distance must be varied by 5.55 mm to focus on objects ranging from infinity down to 0.60 m from the camera.

Camera: in a 35