Cool Teleconverter Sigma 1 APO
smile, February 16th, 2010 I have used this with a Sigma 150-500mm lens. Since the Sigma lens is relatively slow I lose autofocus — but shots I haven’t had this long but shots that I have taken of squirrels and birds in the
Sigma APO Teleconverter 1
Categories: Uncategorized 1, apo, sigma, teleconverter
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