I've always been a bit fascinated with the 38mm lenses that proliferated in Japanese compact manual and autofocus cameras in the 60s, 70s, and 80s. I often wonder if there was a common manufacturer that Konica, Olympus, Minolta, Canon, etc., purchased lens elements from, to which they applied their own unique coatings to maintain the corporate "look". Across the German manufacturers, I can't find anyone outside of Schneider with a 38/2.8 formula, like the Xenar on the Instamatic 500. Always seemed that there was never a full-frame interchangeable lens camera with that focal length.