Hi Jens,
as I have written before, I have done my own resolution etc. tests of portrait lenses: See http://www.arnoldstark.de/pentax.htm
Here are the results in line pairs/mm averaged from f2 to f11 and from centre to corner:
M85 65
K85 61
A*85 62
FA*85 66
FA77 69
My test may not be perfect, but if so then my results could only be worse (not better) than the real performance of the lenses. So, at the tested magnification, the M85/f2 is no dog at all with respect to resolution. Also, my experience confirms that the lens is sharp at mid apertures. It may be worse at infinity. As Yoshihiko did not measure at infinty either,
Arnold about 85/2:
I can explain his low resolution numbers only by guessing that he had a bad sample.
Or you had a better than average sample.
Are there other tests available (Pop Ph, Mod Ph etc.) ?
Andre --
