Well, I measured the '1000x' picture as only a 600 times enlargement on my monitor, and the watch hand and hour markers measured less than 2mm across. Now 2mm / 600 = 3.333microns = at least 300lppm.(posted 8759 days ago)
200 lppm from a 35mm lens? Yeah, right! And to think we paid thousands of pounds 20 years ago for a lens capable of imaging 5 microns at a fixed 10:1 ratio, when we could simply have walked into the nearest camera shop and got a 50mm standard lens off the shelf, that would do the same at any old reproduction ratio, and for less than a hundred quid at that time.
BTW, I made a boo-boo with the depth-of-focus statement. It should have factored in the numerical aperture of the lens, giving a depth of focus of several wavelengths of light. Even so, if the emulsion is a couple of microns deep.....When you can duplicate the results shown on Gigabit's website Martin, tell me exactly how you did it, and how much it cost you.