Originally posted by justtakingpics They are super tak m42 lenses. All i know is that one part was blown out...
I don't know about the K-x, but the K10D and K20D are notorious for incorrect metering with manual lenses. In general, the error is toward overexposure, and the smaller the setting aperture, the more pronounced the error.
I just tested my K7. The error is not as severe as the K10D, but it's there nonetheless.
Why don't you do some simple testing and verify for yourself: attach a manual lens to the body, set the lens wide open, take a meter reading and note the shutter speed set by the camera. Now close the lens down one stop, take a meter reading and note the shutter speed. Keep doing that until you reach the smallest aperture of the lens. In theory, each time the shutter speed should be half of the previous setting. I think you'll find that's not the case.
Do that for each lens and you'll see that for each lens, at each aperture setting, you'll need to adjust the setting by a certain amount.
BTW, the workaround for the K10D and the K20D is to replace the stock focusing screen with one for the *ist series (LL-60, LI-60, ....). I don't know if there is a workaround for the K-x. I haven't yet found one for the K7.