> Does the K 50mm/f:1.4 suffer the yellow scourge of its screw mount > brothers?
Gee, I've never heard of ~any~ K-mount lens that had the "yellow scourge". I'm assuming that it only occurred only in lenses produced during certain years of the screwmount era. (I'm just making an assumption here, though, and perhaps someone who really knows what they're talking about can jump in...) Fred

