Old style photography using simple tool, the Pinhole or camera obscura with f177, this is extreme, and don’t let a lot of light coming in, great for noire style photo, the Zone Plate with f19 give a dreamy look, but because both need long exposure the result is grainy and gritty,.
I did some selfie to text both optic.
This is the Pinhole results shutter speed 5 sec.
This is the Zone Plate results shutter speed 4 sec.
Even if those Optics are discontinued you can find them online.