I've been looking into the Company Emil Busch, its history and the lenses they made (particularly for projection purposes). While I do have a significant amount of experience with some of the Petzval-based lens families, I don't have a Glaukar unfortunately. So I wanted to ask if someone here has owned or even taken some images with a Glaukar lens. I'm both interested in the regular f/3.1 Triplets as well as the later f/2 versions (5 elements in 4 groups for the most part), so if you have anything to share about either, I'd really appreciate it!