I just got a Medalist II, and perhaps you're like me -- as soon as you get your hands on it, you start digging to learn even more about the device than you knew before. So I got interested in these Ektar lenses, and learned that those in Medalist II's were "Lumenized" or received more than the inter-element softer coatings on the Medalist I Ektars. They were supposed to have received magnesium flouride coatings (thank you, Brian Wallen, what a great website!). I looked for the L-in-a-circle on the lens ring, and horrors, it's not there. Does that mean my lens is not Lumenized? I decided to shot a photo of my lens under a small lamp so that the reflections on the elements, including the front element, would show. See my photo below -- I see three colors of images in the lens: blue, yellow, white. I'd appreciate it if someone who has a Medalist II with a lens bearing the L-in-a-circle symbol checked under similar conditions, and report for all of us whether what I have in my camera matches a marked-as-Lumenized Ektar on a Medalist II. I suspect mine is. The date code on the lens is 1945, but the Medalist II supposedly didn't enter production until 1946, so it's clear that the history on exactly when production began and when Kodak started Lumenizing Ektars is a bit...out of focus. This should be interesting! Thanks!