Hi, I already posted something similar in the Sigma 50mm image samples thread, but I didn't want too spam that thread with more images that may be off topic.
Other post: https://photography-on-the.net …p?p=7792371&postcount=956
I took more pictures at various apetures. It seems that my lens doesn't sharpen up until about f/5.6 or f/8. Are the following images typical of this lens?
I used a tripod, 2 second shutter timer and mirror lockup. RAW, DPP processed with no sharpening. The bottle is on an angle to show that focus is on the 'C'.
Thanks for any help and replies.