I posted the other day about Roger Cline’s instructions for making perfect pinholes and zone plates using graphic arts film, which is totally sweet on its own. Repeatable and perfect pinholes? YES!
But wait! There’s more! I just realized that Cline’s method is a huge boon for people who shoot digital. It’s easy and cheap enough [...]

Roger Cline walks you through making perfect pinholes and zone plates with a vector drawing program and computer-printed film from a graphic arts service bureau.
While zone plates are always made with film of some sort, I’m curious about light transmission loss using film compared to an empty hole for a pinhole. Anyone have info on [...]