When you buy a lens, the length marked on it is actually the focal length for a full-frame camera; using one of Nikon's cropped sensor cameras gives you a crop factor of about 1. Nikon D7000 Experience - The Still Photographer's Guide to Operation and Image Creation with the Nikon D7000 by Douglas Klostermann. Digital camera prices in Kolkata is likely to be more reasonable because of its easy transportation and easy reach; in fact there are few industries as well for the production of cameras.
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