The 35/2.0 concave, chrome nose, which I own, is a lens I have almost never used, because:
- It is very heavy
- It has yellowing due to the thorium lenses.
So it is confined to the shelf, really.
The New FD 35/2.0 is a lens i wouldn't recommend, because:
- most samples out there suffer from haze
- it has a floating system and New FD lenses with floating systems tend to suffer from degratadion of the guides required to move the floating assembly. As a result, the moving part of the optical system rattles and is not aligned correctly.
Thus, i'd recommend you to go to the real nice, high performance, small, light and cheap FD 35mm lenses, which are the New FD 35/2.8 and the FD 35/3.5 S.C. Both of them are truly good.