Here are some test shots I've taken with this setup: (Nikon D100 + Cambo SC + Schneider 5.6/210)
However, it does have some drawbacks. Due to the nature of DSLRs, D100 weights too much. It'll drag the back down, makes it very hard to align multiple shots. Also, the already long 210mm lens, is multiplied by 1.5 when shooting with D100. Kinda inpractical to shoot portraits and scenery stuff.
Posted by John Zheng