Is the pentax hd fa 35mm f 2 sharp wide open?

I don't have sharpness test results for the Pentax HD FA 35mm f/2, so I can't say how crisp it is at f/2. What I can tell you is that it's a 35mm prime with f/2 as its widest opening. It's made for full-frame sensors, so it suits the Pentax K-1 and K-1 Mark II, and on APS-C bodies it frames like about 52mm.

At f/2 the depth of field is fairly shallow, so focus carefully on the nearest eye or edge of your subject. For how the aperture affects light and blur, see the lenses guide, and for focus tips at wide apertures, see portraits.

Written by Claude from this site's pages.