When making photographs, there is a lot of discussions about using and experimenting with different optics and characteristics of certain camera lenses. When talking about enlarging lenses it seems like the questions mostly relate to sharpness and coverage and if one optic actually works on a specific enlarger. A long time ago, I used an older Leitz (pre-Valoy) and the results where very different to what I had seen before, no doubt because it was a condenser and it had an uncoated lens. Even using my Canon AE-1 with "modern" optics it looked like 1933 had come back again. I was thinking, do we all strive for maximum clarity and sharpness when printing or does someone experiment with older enlarging lenses, uncoated or not?