Exact size of copal 1

[mark]

Does anyone have some calipers and a board drilled for copal 1 who can tell me the diameter. I need to enlarge a couple of copal 0 sinar boards.

 

[Bruce Osgood]

Does anyone have some calipers and a board drilled for copal 1 who can tell me the diameter. I need to enlarge a couple of copal 0 sinar boards.

SK GRIMES does:
http://www.skgrimes.com/lensmount/shutmt/index.htm

 

[Peter Schrager]

Copal 1

There's a chart on the LF photography site. That's what I used to make sure I got the right board for a lens I just bought.
Peter

 

[rbarker]

41.6mm

http://www.largeformatphotography.info/lensboard_hole_sizes.html

 

[mark]

Thanks folks. I did not know anything about that part of the LF site.