Lensboard hole size for Voigtlander Braunschweig Heliar in a Compound shutter?

[Harley Goldman]

Anybody know the lensboard hole size for Voigtlander Braunschweig Heliar 210mm 4.5 in a Compound shutter?

Much appreciated!

[Steve Hamley]

Harley,

I believe a Copal #3 board will work if the lens is in a Compound #3 since the Copal was modeled after the compound. I'm not at home, but I do know I did not bore a custom board for mine and a #1 is too small.

Cheers, Steve

[Ole Tjugen]

Copal 3 is smaller than the Compound 3. See the link in my signature for Compound dimensions.