Do you know of any site that is specific to Voigtlander? I've yet to find one. I'd like to see some reference site, even if unofficial. I wouldn't even mind starting one if there isn't. Like I said, all my Voigtlander info to date has been spotty, at best. A central location would be nice to find info on history, hardware specs, etc. It seems like there's one for everything else. I've got a lens I've been unable to find any info on: Technika badged Voigtlander Heliar 210/4.5. I know what a Heliar is, but I've not found anything specific to the Technika badged version of it.
Some Americans can work in metric. I'm one of them, but I find I'm one of the few when putting others to the test. If it wasn't for my hobbies, I'd probably be one of them too. 12" = 300mm. Yay for lens knowledge. Scuba diving taught me how to cope with air pressure, depth and temperature. My first console was all metric (some Euro model by Cressisub). It was hard at first, but once you realize that red is still red and you're almost out of air, the rest is easy!
Chris