Many people buy an expensive telephoto lens, normally used for photographing a subject that is far away, or to memperbersar subject. Before buying a telephoto lens you have to understand what it Telephoto Lens.
Does it actually Telephoto Lens? Lens is a telephoto lens has a focal range of 60mm or more, if it is wider than the 60mm lens that includes a standard lens or wide lens.
There are two types of telephoto lenses, one is a telephoto zoom lens that can not (fix lens), such as Canon EF 85mm f/1.8. The second is a zoom lens, like the Canon 70-200mm f / 4 L. Zoom lens that can be more multi-functional, but the fix lens usually has a wider maximum aperture, small size and more broadly. There is also a lens that has a focal range from wide to telephoto. For example 18-200mm lens.
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