I'm looking for a shutter with an opening of at least 5" (127mm) that can do fast shutter speeds. I've spent a lot of time thinking about this and here are some points:
- Opening and closing the lens with a cap is not an option
- Custom Packard shutters are not possible due to both price and the limitation to 1/25 or so. I need the shutter speed to be adjustable.
- DIY is an option and I've thought about guillotine shutters, rotary shutters as well as focal-plane-like shutters. The main problem I have is controlling speed.
- The shutter can sit any where really. Assume that this is for a DIY 8x10 camera.
Any suggestions would be much appreciated!