> Compared with a Nikkor 10.5mm my Sigma 15mm has a different kind of flare
> behavior -- ie. a general veiling haze compared to the more compact (and
> often more retouchable) flare artefacts of the Nikkor. The Nikkor is much
> sharper wide open but stopped down they have the same sort of sharpness I
> would say. The Nikkor shaved has 200 degrees of coverage on full frame -
> which has its particular uses.
> Peter M
> I agree any single word, but the Sigma 15 I have is really not so bad in
flare, after all.
I used any single degree of the 10.5, has its uses, really. Not a matter of
stitching-picture area, but of aid for color blending and control point
placing (even if the maths we use are not dealing really precisely with
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