@mangurian wrote:
I took a bunch of shots with a used lens. I would like more experienced users to give me an opinion and especially comments. I purposely deleted the EXIF data to avoid bias. I will post the data later.
Here are 3 full size jpegs. Converted from RAW. Shot using full auto. No in-camera or post-processing. Thanks.
ok - The lens is a nifty 50 Canon EF 50mm f/1.8 STM using an adapter to a mirrorless.
photo 1
photo 2
photo 3
STM lenses have their quirks, but Canon's are considered to be optically very good. And there's nothing obvious in those pictures to contradict that. The underexposure that Ernie mentioned makes it a little harder to judge the overall quality of the picture, but is almost certainly not the fault of the lens. (A lens can cause underexposure if its aperture mechanism is out of adjustment, but that's a) rare and b) easily corrected, as long as the effect is consistent, on most serious cameras.)
The big things to look for on a lens are edge-to-edge sharpness and lack of distortion. Both of those seem OK on your lens, but as Ernie pointed out, the subjects don't present much of a challenge. Fix the exposure issue and take some more pictures. Then let us have another look.
Bob
Philadelphia, Pennsylvania USA
