Originally posted by TwoUptons On the plus side, you only ruined one frame of film
It’s a lot easier with a camera that has a switch or button to do it...
The K1000 will do mirror lockup with a bit of a hack, but I’d rather use a KX for that...
-Eric
Yes, I find it odd that Pentax even advised the "stop the rewind knob from turning" approach to multiple exposures. Generally, it means having to rely on the drivetrain slipping enough to let the shutter re-cock. I have found that most cameras you try that on do shift the film somewhat, and when advancing to the next frame, you may get some overlap. I've never tried it on a K-1000 though, but I might consider it good practice to shoot a blank frame after your multiple, just to be sure the drivetrain has re-engaged properly.
Cameras that fully disengage the drivetrain with a proper multiple exposure button or lever are generally a better bet if you really want to do a lot of multiple exposure work. Better yet, an AF camera with a proper ME mode, where you can choose the number of frames you want overlapped. They work great (especially for fireworks and stuff on a tripod).