Telephoto Lens

Telephoto Lens

                                                                                                  A collection of telephoto lenses

Telephoto lenses are now and then taken into the further sub-types of medium telephoto: lenses covering between a 30° and 10° field of view (85mm to 135mm in 35mm film format), and super telephoto: lenses covering between 8° through less than 1° field of view (over 300mm in 35mm film format). In photography and cinematography, a telephoto lens is a specific type of a long-focus lens in which the physical length of the lens is shorter than the focal length.^[1] This is done by incorporating a special lens group known as a telephoto group that extends the light path to create a long-focus lens in a much shorter overall design. The angle of view and other effects of long-focus lenses are the same for telephoto lenses of the same specified focal length. before andafter 

Telephoto lenses compress the sense of depth, whereas wide angle lenses exaggerate the sense of depth. Since spaciousness is an important quality in many landscapes, the rationale is that wide angle lenses are therefore better suited.