I agree with John's suggestion for a 4x5 camera with a roll film back, along with Ron's comment about Linhof. I started with an old Tech III and moved up to a V last year, so I know how well built, solid, and durable they are. I think Linhof makes smaller than 4x5 cameras but I'm not sure. In any case I would suggest you at least give 4x5 a try. You might like it. I have a beautiful Hasselblad 501CM rig that has not seen the light of day for several years simply because I am so addicted to those big negatives.