As you can see from my signature tag, I'm rather aligned with your thinking.
M85/2 is one sharp lens and quite neutral in colours to my eyes (a good thing for a portrait lens). Goes a bit wild with colour fringing wide open but away from F2 is really quite nice. F2.8 tames fringing quite a bit and the fringing is close to gone by F4. From F2.8 the fringing can be managed in Lightroom ok. F2 fringing is more significant (and unusually blue for fringing) and harder to deal with in post processing. I would treat F2 as only suitable for low contrast settings, eg low light indoor images. Very compact for its focal length, good for street photography at a polite distance from the unexpecting subject.
One of the better lenses in my M series collection.
---------- Post added 23rd Dec 2015 at 02:07 PM ----------
Originally posted by bdery
And a faster 135mm.
There was only the 135/3.5 in the M series. You need to go to the earlier K's for the 2.5 (good lens) or to the A for the 2.8 (so so from reviews here).
Or go down to the M 120/2.8.
---------- Post added 23rd Dec 2015 at 02:10 PM ----------
Originally posted by dcshooter
Don't they just look stunning!