I started to put together a 8x10 camera and then decided it would be best to stay with 4x5 for the time being. The Betax shutter is in good working condition although it sounds like 1/100 and 1/50 might be a little slow. There is some internal dust and cleaning marks which isn't surprising for the age of the lens. I'd like to get $125 + shipping (this is what I have in the lens.) If you have any questions I'll do my best to answer them.