04-01-2015, 09:55 AM
Klaus, have you seem the (Imatest) based review at Ephotozone?
http://www.ephotozine.com/article/carl-z...view-24059
Their sample appears to be very even wide open at 70mm.
Now I don't think they are hopeless, and I *know* you aren't, so that leaves a combination of two things:
Terrible QC at Sony (and perhaps a design that gets out of tune easily) combined with incompetence at Sony Australia.
http://www.ephotozine.com/article/carl-z...view-24059
Their sample appears to be very even wide open at 70mm.
Now I don't think they are hopeless, and I *know* you aren't, so that leaves a combination of two things:
Terrible QC at Sony (and perhaps a design that gets out of tune easily) combined with incompetence at Sony Australia.