What is Telephoto lens?
In [[photography]], a '''telephoto lens''' is a [[camera lens|lens]]. There are two different uses of the word. The less specific use is to mean a lens that has a longer [[focal length]] than a [[normal lens]]. Their angle of view is smaller than that of a normal lens. With telephoto lenses things look closer than they really are. The other meaning of telephoto lens applies to lenses that are constructed in a special way so they can be shorter than their focal length. For [[135 film|35 mm film]], 50 mm is a normal focal length. Typical telephoto lenses are 85 mm (28°50') and 100 mm (24°). They are used for [[portrait]]s mostly. Other telephoto lenses that are used often are 135 mm (18°), 180 mm and 200 mm. Many are [[zoom lens]]es. Longer focal lengths (300 to 1200 mm) are used in sports and nature photography. ==Different focal lengths== Effect of different focal lengths on photographs taken from the same place: <gallery> Image:Angleofview 28mm f4.jpg|28 mm Image:Angleofview 50mm f4.jpg|50 mm Image:Angleofview 70mm f4.jpg|70 mm Image:Angleofview 210mm f4.jpg|210 mm </gallery> The above photos were taken using a [[135 film|35 mm]] camera, using lenses of the given [[focal length]]s. [[Category:Camera lenses]]