I had a bit of trouble with my 90 Cron APO wide open until I sent it and the M 10 I pretty much leave it on and the lens into Leica to calibrate together. that was several years ago and it has been really good since. I shoot a lot of candids and portraits wide open without any issues.
I had a bit of trouble with my 90 Cron APO wide open until I sent the M 10 I pretty much leave it on and the lens into Leica to calibrate together. that was several years ago and it has been really good since. I shoot a lot of candids and portraits wide open without any issues.