I guess this is the name. There's also written Coldon Color C.S. on the front of the enlarger. This enlarger has a Schneider 105 mm lens that looks to be of a good quality. I'd like, however, to be able to print a smaller format negatives up to a decent size so I need a 50 or 75 mm lens. The problem is that this enlarger has what I would call a focusing lens on it. In other words, there's no bellows to move the enlarger up and down for focusing. The head is stationary and the lens is where the adjustments are made. I've never seen such a lens on an enlarger before.

I guess it has about a 45 mm thread. I've asked around at some used dealers but they don't seem to be that common. Any ideas where one might find one (I haven't heard back from Schneider yet) or if there might be a workaround? I have no idea whether an old camera screw mount lens could some how be adapted to fit the enlarger?

Thanks for any help!