Thus, if your teleconverter provides a magnification factor of M (where M may be 1.4, 1.7, 2, etc.), and your lens has a focal length of F and an f-number of N, then the result of attaching the TC to the lens is to produce an effective focal length of M Ã F and an f-number of M Ã N.
Those on the hunt for an Apple Watch can find them online and in the Apple Store, Best Buy, Target and B&H Photo and Electronics in New York City. For those on a shopping mission, here are the five big things to watch for that can affect your bank account.
Will hit the market after a few months Appleâs most âpersonal device yetâ, Apple Watch, is expected to hit India in July. The base model is estimated to be priced at Rs 30,000, with its expensive editions going up to Rs 10 lakh.