A simple camera telephoto lens consists of two lenses. The objective lens has a focal length f = +42.0 cm. Precisely 34.8 cm behind this lens is a concave lens with a focal length f = -13.8 cm. The object to be photographed is 3.72 m in front of the objective lens. How far behind the concave lens should the film be placed? Submit Answer Tries 0/100 What is the lateral magnification of this lens combination? Submit Answer Tries 0/100