Hello All, I need help finding a 35mm SLR (new or used) based on the following criterion: Must have features: 1. ability to manually control the aperture, focus, and shutter speed. 2. film reverse for making double exposures. 3. I'd like to be able to use it with my telescope, so it has to have a shutter that can stay open indefinatley and a mirror that can be locked up. Features that would be nice: -in camera light meter -flash sync @ 1/250 sec This will be the first SLR I've ever owned and I'll be doing a lot of learning with it, so the more manual it is, the better. Not that I have a problem with automation, it's just that I don't want to get confused by all of the features most AE cameras offer. Thanks a bunch and have a good one, A.