Just out of curiousity, can anyone speak from experience about the relative optical performance of the K30/2.8 and the FA limited 31?
The 31 is of course faster, and has A and AF functions, plus you can buy one pretty much any time from NY dealers. I'd be tempted, but I've got a K30 and my tests (I haven't had much chance to SHOOT with it) show it to be a superb performer, decreasing the appeal of the FA 31. On a related note, I understand that M150/3.5 and M100/2.8 are generally held to be inferior to K150/4.0 and K105/2.8 (both screw-mount designs, from what I can tell). Unfortunately, the M lenses are cheapish and easy to come by, and the K lenses aren't. I'm particularly curious about the M150/3.5 as an alternative to hauling an M80-210/4.5 or K135/2.5 (better, but bigger) to England next year. DJE
