> I've heard this lens has some sort of problem. How bad is it? What sort of > problem?
> This is one of the Pentax manual focus lenses. I'm hoping it might be a > cheap, but still useable option for my *istDS. It's not SMC. It's not as good as the A* 135/1.8 or the K 135/2.5. But, if you don't have to pay too much for it, it can be a decent-enuf 135 (200mm "effective FL" on the D/DS/DL). (I think it's really an f/2.8 lens, but I won't quibble too much here...) Fred
