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

Started May 28, 2012 | Discussions thread
The Big One Veteran Member • Posts: 4,564
Re: Sigma OS 50-500 vs 150-500 vs 80-400 vs 120-400

The 50-500 OS seems to be well reviewed... I can't afford one, but if I could I would get it.

I am currently using 100-300/4 + 1.4x TC when I need extra reach. IQ is quite good throughout the range for distance focusing (shots within about 8m at 300mm f/4 degrade slightly, but stopping down for these shots helps immensely (and when you are shooting small things that close you generally want to stop down for DOF anyway). I find this to give IQ at 300mm and beyond around 8m distance to be pretty much on par with 300/4 AF (which I also had, but sold), with the added bonus of being able to zoom to the wide end when you are too close. Focus without the TC is lightning fast, and with the TC it is decently fast (about the same as my 18-105).

It does not have OS (a distinct disadvantage), and is about the same size / weight as the 50-500, but I don't think you are going to get much better in a smaller package unless you go to a 70-300mm zoom...

Hope this helped a bit.

dholl wrote:

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.

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