Question about Sigma APO 50-500mm F4-6.3 EX DG/HSM Lens

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Excessive hunting with Olympus E510


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.



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SOURCE: trouble focusing with sigma 70-300 DL macro super lens

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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SOURCE: Sigma 18 -200 lens with D40x

This lens is NOT compatible as the body doesn't have a motor . £200 wasted

Posted on Jun 09, 2008

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Bigma 50/500

Hey Bob G,
I would try blowing compressed air into the lens to try and dislodge whatever is stuck in the lens barrel. If this doesn't work I would advise you to not take the lens apart. Camera lenses require precise mechanical alignment that can only be achieved with the right tools and the education necessary for achieving it. It would probably be easy to take it apart, but very hard to put it back together. You could try a shim, but you run the risk of damaging the lens further. I hope this helps!

Go Ahead. Use Us.

Jun 21, 2008 | Sigma APO 50-500mm F4-6.3 EX DG/HSM Lens

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Converter Lens

Lens not suitable spec for the Olympus then? Can you check that?

Sep 11, 2007 | Camera Lenses

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