Check out this gallery of photos comparing pinholes to zone plates from pinhole/zone plate camera manufacturer Zero Image.
Tag: zero image
Updated: 35mm film advance guide for sprocket hole photography
The 35mm Film Advance Guide for Sprocket Hole Photography—a guide for getting efficient frame spacing with 35mm film loaded in Holgas and other knob-advanced medium format cameras for exposure of the entire height of the film, including around the sprocket holes—has been updated to include the Agfa Isoly.