Sigma OS 50-500 vs 150-500 vs 80-400 vs 120-400

Started May 28, 2012 | Discussions thread
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dholl
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Sigma OS 50-500 vs 150-500 vs 80-400 vs 120-400
May 28, 2012

Yes, it seems Sigma offer a ridiculous selection of lenses in very similar focal lengths.

I'm interested in Sigma OS telezooms going to at least 400mm, preferably 500mm. I intend for them to be used on the D800, except mostly in DX-crop mode.

I only have experience of the Bigma 50-500mm (non-OS version) and thought it delivered decent IQ (tho' my camera at the time was a 4mp D2H). It didn't really go to 500mm...more like 450mm or 470mm. But the IQ and focussing was not bad at all, better than I expected anyway.

But it's massive and heavy. What are the other 3 options like?

Sigma OS 150-500mm
vs
Sigma OS 80-400mm
vs
Sigma OS 120-400mm

I don't need the wider-angle focal lengths, I need the reach. Most important factor is:

good IQ even wide-open at the tele-end, with reliable focussing.

Any other suggestions of an AF zoom lens going to at least 400mm with stabiliser function? Price has to be similar to these lenses (so unfortunately no Nikkor 200-400mm).

Thanks.

Nikon D2H Nikon D800 Sigma 50-500mm F4.5-6.3 DG OS HSM
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