Originally posted by Sandy Hancock The Sigma 35 Art is properly full frame. The HD35 macro limited is not - it's essentially a crop normal lens which you can "get by" with on full frame. So I don't think the two clash at all. That's why I have both (and the FA31)
It's true, it does 'get by' on full frame, enough to get me into Explore a few times xD
(and a couple of non Explore shots but proving nonetheless that it's more than capable in FF mode)
My point here is to illustrate that with post processing vignette removal and a more favourable 16:10 aspect ratio, I get 28.5 and 31 megapixel shots with it (and in some cases like the wall shot the full 36mp, which had additional vignette added fyi).
I found the DA 50/1.8 and DA 40 XS also in the same camp for vignetting, the difference with the HD DA 35 is you have to have the hood retracted, and if you add filters you will lose a tad more edging, but crop mode?! Nah... way overkill.
I've still to really test my FA 77 for vignette but I found
your door shots (with the wreath) you had taken really informative, imo it's vignetting quite a lot at wide open, making f2.8-4 being necessary for it to disappear. That's pretty whacky for a supposedly full frame lens, I mean the DA 40 XS at f2.8 is almost the same vignette as the 31/1.8 each wide open, yet one was never intended for FF and the other was.
But both lenses and the vignette can be adequately dealt with in post, and more often than not a small amount of vignetting is a welcome addition to a nice shot. Even in landscape shots like waterfalls etc I quite enjoy some vignette. It's rare actually the opposite is true and I want absolutely no vignetting.
I just find it amusing how some lenses get passes for FF and others fail, when really when it comes down to it both can render extremely similarly. I'm not interested in what's technically this or that, just what actually get's the job done well (and FYI I typically would crop many shots of mine down to around 30mp that have nothing to do with vignetting issues but rather fine tuning composition or straightening the shots anyway).
Sandy... I'm not sure there's a lens you
don't have
Next time I have a comparison to make I'm a cut out the middle man (Pentax Forums) and come straight to you