Copal #1 diameter

[Massimiliano Spoto]

Please help me!

I buy a Rodenstock 210 mm lens for my Toyo G. The shutter is COPAL 1 and i desire to know how much measure COPAL 1 in milimeter is equivalent!

Thanks for your answer! Bye M.Spoto

[James Driscoll]

http://www.skgrimes.com/lensmount/shutmt/index.htm

41.8 mm