Thanks Rob ... Boz's site shows the A version to be quite a bit lighter than the K version. Any idea if this is correct, and, if so, why is the lens lighter? It would seem - at least on first surmise - that something had changed in materials or construction.
Shel > [Original Message] > From: Rob Studdert > The A50/1.2 barrel, focus and aperture rings are all metal construction and > when the helicoid lube is good it's generally a very nice and smooth lens to > use.

