Dimension to film plane for film holders

[Gordon Coale]

I picked up a pile of wooden cut film holders. I need to check them for warpage. It seems the distance from the reference surface of the holder to the film plane should be 3/16" for 4x5 holders. Does anyone know what the dimension should be for 5x7 and 3.25x4.25 holders? I'm warming up the depth gage.

[Monophoto]

Gordon -

Try this link -

http://home.earthlink.net/~eahoo/filmhold.html

Louie

[Jim Chinn]

Here is the ones listed on the canham site. Don't know if any are applicable to you but others might be interested.http://www.canhamcameras.com/Film%20Holder%20Specs.html

[Gordon Coale]

Louie,

Thanks!! That's exactly what I need.

Gordon