Making 20-Micron Photolithography Masks with a 4x5 Camera
Applied Science · Tutorial · 30 min · 2020 · YouTube title: Antique 4x5 camera creates 20 micron photolithography masks: Super tiny tax form
Why it's here
Cited as an accessible way to make lithographic masks at home, in threads about hobbyist chip fabrication.
What it covers
Ben Krasnow of Applied Science uses an antique 4x5 view camera to make high-resolution photolithography masks in a home shop. He photographs a poster-sized printout onto litho film to get features around 20 microns.