I've been doing a lot of macro photography with my 35mm SLR, and I'd really like to be working in a larger format instead, since I do a lot of in-darkroom manipulation of the negatives, etc. My question - is it possible to do close-up photography with a large format camera? Can I expect to get 1:1? Is it possible to _magnify_ past 1 :1? (Ideally I'd like to fill the frame with pretty small things, like fingertip-size...)

I've found a pretty good deal on an old Speedgraphic, but something tells me tha t one of those field-cameras is going to be a lot less good for close-up work than a monorail - any suggestions?