j4nu Online Upload & Sell: Off
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bobek13 wrote:
It's not that I wouldn't use my Nokton anymore, that lens ain't going anywhere it's my favourite lens.
I am asking as the Sigma would be my "only" af lens (except the 150-500 Tammy I got for birds) and would be used for those rare occasions I shoot people and can't afford to miss focus.
So you say you haven't noticed any af issues with RIV - shooting people in af-c?
Since you didn't get an answer, I can share my experience on A1.
IMHO, it comes down to your personal expectations (tack sharpness, pixel-peeping, etc.) and the lens characteristics (it gets "glowy" the closer you are to focus target, so it's getting harder to assess where exactly the focus point is, [email protected] is not really that demanding in terms of DoF at longer distances). You can get a properly focused AF-C shot, it's just that you will get more shots, which are more or less close (but not really on point). These are mostly usable, but it's up to you whether they are acceptable or not . That's the main issue with AF-C on this lens, it's not consistent enough to be deemed reliable, at least compared to native Sony lenses or AF-S.
Here's an example of 3 shots AF-C vs 3 shots AF-S, f2.8 ISO100, you can check if you can see the difference (view at 100% - open in a new tab - though ):
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vs
2)
vs
Edit: I took it for a spin on a short walk after a long hiatus and... well, I might got a couple shots where the focus is off a bit, but the rendering is not . I think AF accuracy becomes kinda a moot point when you see that lovely SA bokeh ...
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