DIY Pinhole Camera,Solargraphy Kit for Ages 12 The square format pinhole camera with an innovative light tight clamshell design. Square picture format with images of 24mm x 24mm, with four settings using 2 apertures plus a soft focus filter Get up to 50 exposures on a standard roll of 36 exposure film Pinhole Cameras allow many really good close up shots due to the DOF (depth of field) of the pinhole.