I have a fairly large Voigtlander Petzval I'm trying to attach to my little Chamonix 45n. I'm not sure how to secure it to a lens board and use it. The diameter of the rear of the lens is right at 65mm, and the flange overlaps the lens board. My thought was, "Just take the flange off and have a smaller one custom made." No dice. Somewhere back in time a moron soldered the flange onto the lens. It isn't going anywhere. So, I took some 4mm thick black foam core to make a spacer to fill the gap between lens board and the edge of the front standard's uprights. That was enough, but now how to tie the lens, foam core, and lensboard all together so the lens doesn't fall off? My first thought was to simply run screws through it all, but since the diameter of the lens takes up SO much space on the lens board, the nuts would not fit in the empty space (hole) the lens goes through but would instead hit the solid area surrounding the hole (no clearance.) I had a thought of somehow epoxying the foam core to the lens board, and then screwing the flange into the foam core, or even bolting it on since I can countersink the nuts in the foam core. But, what adhesive will reliably glue foam core to painted aluminum? Any ideas on how to mount this pretty cool lens to the Chamonix? I can't be the first to do something this crazy.
Kent in SD