A year ago I was experimenting with lit backgrounds for my macro work. I used an old slide projector screen set up about 5 feet behind the subject and lit with a seperate flash. I took these pictures with a Nikon 105mm bellows lens attached to a PB-4 Nikon bellows. In my Nikon I had black and white film and in my Nikkormat I had color. I could then remove one camera from the bellows and replace it with the other and shoot the same compositon with a different type of film (just noticed that the composition is slightly different. damn plant it didn't hold still). No desaturation for this guy. NO WAY.