Years ago i made a roll film back for a wooden box pinhole camera, if you could create or purchase a roll of paper you could have multi exposures if that was your main criteria. I have a DSLR with a pinhole attached but that would be considered way too modern for such a forum. keep them coming Joe!

Joe, your caster rolling system for the developing tank is a brilliant solution for developing film, photo paper, or direct positive prints. Highly inventive!

Joe, the detachable tripod base and elastic band support for the pinhole camera is another great idea!

Joe!  Really fun watching you hash through ideas. Have been trying to make your paper bellows. Your right practice seems to be the trick. Thanks for all the original creativity. Can't wait to see how you get on.

Good day. I was wondering how you get the photos to look so sharp? Thanks for sharing the process.

Why not just to put the pin hole on a slide. The paper stays put, but the pin hole is moved along the way, as a panoramic image, one shot at a time. If it works on a straight line, you can then make it curved to have a full 180° or 360° panoramic view, by focusing inward (photography of sculptures) or outward ((landscapes). Thank you for sharing your brain storming, it is fun to watch.

I wonder if it would be easier basically to make a film holder which could be removed from the camera which you would slide forward for each shot?  Just one chamber and aperture, and the holder would have three light-tight dividers that are moved in succession for a new frame.

Then you could pull something only slightly larger than your paper negs out of the camera, place that in the changing bag while the camera stays on the tripod.  Fussing about in a bag with something maybe only the size of one and half modern cell phones would be a bit easier than the whole camera.

This could be something inserted into the camera in a slot, or even something more like a film back.

This is probably unrelated, but can you run photopaper in a vintage box camera like a brownie or a jem?

Very interesting idea Joe ! Just in case you need a project name, how about " The Triptych Camera " ? Thanks for sharing!

What if the pinhole was on a sliding rail on the front of the camera. What if the camera was plastic or pvc so you could develop the paper in the camera. What if you use a 8x10 sheet film holder and the camera had slots for each size image.  I would like to use harmon direct paper but where do you get it?

For having such an wonderfull small photo like you showed of the tree, the paper matters? brand, quality, grain density? thanks for the video.

I like the idea but it's maybe too impractical to have literally 3 cameras stuck to each other because of one piece of paper. I thought maybe a revolving mechanism where you only have one pinhole and shutter and the camera obscura, and then the paper revolves in position with the three frames, and you'd have a way to check from the outside.
I will definitely have a crack at it myself.

But also, where do you find Harman Direct positive because Ilford's website have had it out of stock for months now, and ironically I live a few miles away from the actual town of Ilford in England and can't get a hold of DP paper.

I've just started on salted print and want to do it with my pinhole cameras, use the Salted sensitized paper in the pinhole instead of film or photographic paper, is that possible? thank you so much for this awesome video, I am planning on working on ideas to build awesome pinhole cameras and this was gold!

Have you tested using positive papers with color filters??
Personly only tested variable papers and used that with a yellow filter which can given way better resoults in terms of contrast and sky detail.