View Full Version : Flange diameter for Heliar 21cm f/4.5

Bjorn Nilsson
19-Feb-2007, 08:33
Well, I guess the title says it all.
My guess is that it should be 60mm, but if somebody would either confirm or correct me I'd (hopefully) be more certain.


Ole Tjugen
20-Feb-2007, 01:39
If it's in a shutter, that shutter will be a Compound #3.

A Compound #3 has 60mm x 29 1/13 tpi threads. Yes, 29 and one thirteenth thread per inch. That's directly out of Compur-Werk's specifications!

Bjorn Nilsson
20-Feb-2007, 04:52
Mange takk Ole!