Steve, I think the major advantage of the 1.4's is the extra light for focusing. Of course, this also helps with getting pictures in low light, but I think this is secondary as you can always find a way to try using a slower shutter speed.
The build on the A lenses is a bit different from the M's. Some complain about plastic, but the advantages are in weight. I haven't had any problems with 50's in the A's, but on the A28/2.8 and an A35-70/3.5-4.5 I've had the springs for the A mechanism fall apart... fixed with superglue after careful disassembly. The lens gallery should have some comparison shots. All in all, I'd take the A on a Super Program. Regards, Bob S. [EMAIL PROTECTED] writes: > I own the 50mm-A 1.7 lens. Seems that most think the > 1.4 is a better lens? Do you agree? Has anyone ever > done a side by side comparison? > > I would like to pick up a 1.4, and also wonder if > there is much difference between the A version Vs. the > M version. This would be in the K mount, for a Super > Program, MX, etc.
