Question about Sigma APO 50-500mm F4-6.3 EX DG/HSM Lens
I've tried using my recently acquired used bigma with my E510 as well as my brother's and it is extremely difficult to focus on moving objects (e.g. flying birds) even in bright light. By comparison, my brother's Nikon mount bigma locks focus easily with his D40X under the same circumstances.
It will not focus on anything closer than 5 feet.
(From Sigma lens literature) Capable of macro photography, this lens has a 1:2 maximum close-up magnification at the 300 mm focal length. It's the ideal high performance lens for portraits, sports photography, nature photography, and other types of photography that frequently use the telephoto range. It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. The minimum focusing distance is 1.5m / 59 in. at all zoom settings.
Posted on Dec 28, 2007
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