Great pinhole camera instructable from TitusC1:
One of the things I was aiming at when making this camera is that it should be as simple as possible. And by simple, I mean light-wise. So the design would be of light entering through a lens and hitting a light-sensitive element. That’s it.
Here is where the limitation lies: with large format cameras, the negatives are stored on cartridges, where each cartridge holds two sheets of film. That means that to take 10 photos you’d have to carry 5 cartridges. Tedious. My design got rid of this and allows for up to 50 pictures to be taken on a single load (all automatically protected from stray light while not exposed). I also wanted to be able to use different focal lengths with the body, so that had to be taken care of too. Here is how it was done. Bear in mind that while I go practically step by step on this one, you don’t have to follow the footsteps exactly. In fact, I encourage you to change, mod and experiment with your own designs.
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