Quote Originally Posted by maxn
Also, in case people are interested, I have plans for an 8x10 multi shot
pinhole design which works pretty well. The only thing that isnt ideal is a
change in the "focal length" depending on the shot number. This can
be mitigated by a smarted choice of material than Lexan, though. Anyway,
its a cheaper solution than an 8x10 field cam + holders and is fun to build
(like all ponhole cams!). Tell me what you think:

http://perutz.salk.edu/~mnanao/pinhole/plans.html
This is similar (but reverse operation) to a design I've seen on f/295, the pinhole photography group -- which, itself, was a reinvention of the falling (glass) plate cameras that were sold in 4x5 size from around 1890 until about 1920 or so. The original falling plate cameras had a mechanism that move the plate stack forward to maintain the same film plane through all exposures, and I think the one on f/295 also does so -- one advantage of falling plates.

Bad news is, for a pinhole camera, you have to have a "focal" length longer than the vertical dimension of your film. Good news is, you don't have to have expensive 8x10 holders or reload in a changing bag to take more than one shot.

I'm working on a design that may solve both problems -- a rotary multi-holder design that will produce a wide-angle camera capable of three or four shots. Made in a three pound coffee can or gallon paint can, it might be possible to accomodate 8x10 in one.