Yesterday I received my new DA* 50-135mm, just in time for a nasty snow storm
Didn't stop me from throwing it onto my K-7 and going outdoors to take some shots.
When I first put the lens on my camera, it refused to focus. There was no hint of sound from the SDM. I was bitterly disappointed, figuring I got a dud right off the bat. But after about 3 minutes, the SDM finally kicked in and the lens focused... slowly. There was a distinct delay between the half-press of the shutter and the reaction from the lens. The more I used it, the shorter the delay got, and now the SDM appears to work just fine. This was all in 20 degree weather with driving snow flying horizontally over everything and covering the camera. The large hood kept the front lens element mostly clear of snow, although I did have to remove the lower slot once in a while to let the snow fall out.
Things got so bad, I could barely see the rear screen, top LCD, or even the viewfinder at times. But it was still a lot of fun, so I kept shooting. Everytime I wiped the camera off, it would be dripping with melted snow. When I got home, I dried off the camera real good and took the lens off. There wasn't any moisture inside whatsoever, everything was perfectly dry. None of the displays show any sign of trapped moisture, they all look good as new.