Having just laid out for new lenses, I'd like to check/adjust the MAF to get them pin sharp. What zoom range and apeture would you set to get the best results.
Lenses are Sigmas 17-70 f2.8-4 OS and thier 70-200 f2.8 OS.
I don't have a focus test card but can rig up something with lots of contrast in a bright room in the house, put the camera on a good stable tripod and use a remote trigger to illiminate any shake.
Part of the problem for me is that I'm also +1.75 long sighted in my right eye. I've got the eyepiece focus adjusted + 3 clicks which seems to be OK but how to adjust this correctly is beyond me if the AF is out on my lenses.
Any advise and help would be greatly appreciated.
Here's a shot taken with the 17-70 this morning at 70mm f4 hand held in dull conditions. ISO was 800
And this was taken this morning in my kitchen in resonable light. Same settings as the first shot.




