Acetate Template for Calumet C2N

I have recently bought a second hand Calumet C2N 6X7 roll film back.

Unfortunately the acetate mask that comes with the back is not there.

Any advise on how to mark the frame on the ground glass will be

greatly appreciated. Or if someone has the acetate and can scan it

please let me know. I think I can print it on acetate and cut it to

the right size.

 

Thanks.

A quick check of the Calumet web site turned up a replacement focus mask for the C2N 6x7 and 6x9 roll film holders for under five bucks. <p>It is Item no. <a href="http://www.calumetphoto.com/syrinx/ctl?PAGE=Controller&ac.ui.pn=cat.CatItemDetail&ac.item.itemNo=9C350275&ac.treeSearch.detail=y&type=SPDSEARCH">9C350275</a>

The above is probably the best way to go, but I have made my

own out of yellow acetate which you can purchase at an art

supply store for under a $1, and there's usually enough material

to make about a billion of them which could be left everywhere

like reading glasses should be.