[LargeFormat] 8x20 to 12x20
Craig Koshyk
largeformat@f32.net
Sun Mar 28 11:28:11 2004
Hi All,
I am currently restoring an 8x20 banquet camera. I have taken it apart
(photographing each step of the way so I know how to put it back
together!) and have stripped the finish from the wood. A friend of
mine, an excellent woodworker is doing some minor repairs to certain
areas. His work has been so good that I have asked him to actually
replicate each piece of the camera in mahogany. I have another friend
who is a metal smith. He has agreed to replicate the brass parts (I
will purchase bellows and gears etc. on line).
When all is said and done I will have sufficient parts/pieces to make
two cameras, the refinished original as well as a brand new one.
However the thought occured to me that I can simply scale the back of
the replica camera up to 12x20 from 8x20.
My question is this:
How do I caluclate the amount of extra width I need on the back. The
image size of the 8x20 is not exactly 8x20 (something like 7 5/8 x20)
and the slot for the film holder obviously has its own measurements to
accept an 8x20 holder. It seems to me that I really need an extra 4
inches of width, n'est-ce pas? Or is it a bit more complicated than
that?
Would anyone on the list be so kind as to measure their 12x20 back for
me so I may make one like it for my camera? I would need all the
appropriate measurements including inside and outside dimensions, film
holder size etc. I can then compare them to the 8x20 back to see where
I need to add the extra room.
Thanks,
Craig K.