Uh, I was supposed to bring the mounting flange for the Ilex #4 to my job for measuring it for lensboard drilling, but I forgot the whole thing.... Anyone know the hole size? I`ll use the flange as a nut, not screwing into the lensboard.
If your lensboard happens to be a Linhof Technika or Color, then the Grimes #4 flange won't work as a jam nut. It is too broad and interferes with the inside lower camera surface. (The lensboard in question mounts the lenses closer to the bottom than top.)