Originally posted by vincen Hi,
I'm owner of 55mm/f2.8 lens that I want to use for shooting panoramas. So I need to use at least f/8 but I'd like to know which aperture gives best result with this specific lens ? I have not been able to find detailed reviews on internet or here in forum of that lens to be able to know which aperture gives best result with that lens
it'll be used with 645D
Thanks,
Vincèn
I don't own that lens, so can't help you out based on my experience, but it seems most people testing a lens find a flat surface that has some texture to it (brick wall seems common) and shoot a variety of apertures, using a tripod, shutter release, and only varying the shutter speed to keep exposure the same. Then pull them into your software and zoom in to 100% and compare. Seems pretty tedious to me...so, I'd just guess that the sharpest will be around f/8 (combination of least diffraction and best corner sharpness). For panos, I'd consider shooting a bit small in the aperture, up to f/13 (or more as needed) as well, as you're going to end up with a HUGE file and I think the DOF would play a more important role than a little diffraction...but that's just my opinion!