Super-tak 55mm f/1.8 - Just awesome. I rarely use mine, but when I do, I always ask myself why not.
Meyer Görlitz Orestor 135mm f/2.8 - There's something about german presets that just rings with me. This 16-blade aperture monster continues to deliver impressive performance in any short tele situation.
Pentax SMC-M 50mm f1.7 - Sharper than most, a pleasure to use. Only lacks a bit in out-of-focus rendering. Otherwise they might as well have called it "Limited".
But my favorite must surely be the super-tak 50mm f/1.4 (and yes, I did get mine for under $100). Probably my sharpest 1.4, color rendering is awesome and the feel of that older-takumar focus ring gets me every time. I sometimes think about getting the eight-element version, but really, I don't see the need. Not so fun in cold weather, though. Lubricants have come a ways since the sixties.
Damn, I need to play more with my M42 gear.
Last edited by topace; 02-13-2012 at 06:21 AM.