Sounds interesting, but I'm slightly confused. Surely if you're moving just the subject (with illumination plane, camera and focal plane all stationary) then you're just going to get a smear unless the shape of the subject is extremely constrained so that no two parts at different depth image onto the same part of the film?
Originally Posted by Nathan Potter
Wouldn't it be more accurate (obviously more difficult) to slide the focal plane and the illumination plane through the subject while keeping the subject/lens distance fixed? It'd mean that the light and film back go in the same direction but at different speeds unless the magnification is 1:1 and doesn't vary much through the depth of the subject.