But the metal of the round tin box is thick what will restrict very much the image circle. So I made a larger hole, 4mm diameter, and glued over this hole and inside the box a thin film of acetate with aluminium tape and then perforated this film and aluminium adhesive together with the 0,5 mm pin at the middle of the 4 mm hole.
|First version of my pinhole camera|
|Pinhole photo inverted with Photoscape|
|Upgrading my pinhole camera|
To be continued...