Originally posted by dms I also don't have the DA 21mm (I have an old Vivitar T4 21mm) and I am using it as a benchmark:
-- BTW I assume you used manual focus--if not then its tougher to say if it's lens or not.
-- They look OK as regards resolution--maybe somewhat low, but the contrast seems quite low. Perceived resolution is also about contrast
- Were you using a hood? They look like shots on a sunny day w/o hood.
- Also the lighting is generally very poor.
- Except for 1 (last shot) they are all 1-1.5 stops underexposed, which makes them look worse.
- If you mean to test lens you should cover the range of f stops--it may be better at f11-16. All the shots are about f5.6 (5.6-6.3)
except one at f3.2--and it is not a good shot for evaluating lens. A more gray scale wall w/ horizontal lines would be nice.
-- Excepting the exposure adjustment, not sure what pp you mean. Should not need/should not use (IMO) sharpening to evaluate the lens.
i have tried every sort of focusing types - af, mf, live view, hyperfocal.
i do tend to underexpose most of the time as i can always recover detail in PP.
the hood was on at all times (comes preinstalled with the lens)
not too keen to shoot walls to be honest as i try to test my lenses on what i actually shoot the most if you know what i mean.
i guess they have turned ok in the end after PP.i did bring the contrast up to 25 which makes the images pop a little more.