Five. A 40mm Nikon I seldom use, 150mm unbranded I haven't used since the early '90s and the three I keep in the turret. A 50mm f/2.8 Rodagon, a 75mm f/4 Nikon and a 135mm f/5.6(?) Nikon.
Hi Old-N-Feeble. I came across an old issue of Darkroom Magazine from the late 1980's which had an article written by Ctein about enlarging lenses. He tested out many many lenses and even provided a handy table which gave the specs on each lens. Anyway, unless I have a newer model then the one listed on the table it stated that the 50 mm Componon-S is a five element design. My lens must be a current model since it looks just like my 100mm Componon-S.Marc, I think you're mistaken. The 50mm Componon-S is a 6/4 design. You're saying yours looks like a Heliar or something else?



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