Our pinhole cameras work similar to the SLR camera. Both have a shutter speed. On our pinhole cameras out shutter was the manila folder piece that we put over the pinhole. Also both cameras had an aperture. Ours was the pin whole that determined how much light was let in. Obviously the SLR cameras actually have lenses on them while ours didn't and SLRs have flashes on them. Inside of the pinhole camera there is no reflection on mirrors like there is in the SLR. With the pinhole the light reflects of objects onto the photo paper but with the SLR the light goes through a lens, iris diaphragm, and hits the mirror putting the image onto the film.
The pinhole camera and the SLR camera are very similar but obviously have their differences. They basically work the same way and do the same thing.
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