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this post was submitted on 28 Jul 2025
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TechTakes
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Big brain tech dude got yet another clueless take over at HackerNews etc? Here's the place to vent. Orange site, VC foolishness, all welcome.
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Film photography is my hobby and I think that there isn't anything that would prevent from exposing a displayed image on a piece of film, except for the cost.
Depending on film it might not be easy to tell exposing an image from a real picture.
The "hybrid" digital instax cameras work this way, it's just a digital camera that has a way to internally expose the picture on the instant film.
It's trivial to do analog prints from digital images too, just requires an inkjet printer and a special film to print out the "digital negative".
The only way in which it may succeed as a deterrent is that it actually costs some money (film and processing is not cheap) and requires actual work to do those extra steps.
I expect the "requires actual work" part will work well in deterring AI bros - they're lazy fucks by nature, anything more difficult than "press button for instant gratification" is gonna be a turn-off for them.
Well, the other thing is that except for the instant film, there's no instant gratification in this hobby. Even when one processes at home, the typical time form a photo to a print is measured in hours.
Glass plates it is, then. Good luck matching the resolution.
In all seriousness though I think your normal set up would be detectable even on normal 35mm film due to 1: insufficient resolution (even at 4k, probably even at 8k), and 2: insufficient dynamic range. There would probably also be some effects of spectral response mismatch - reds that are cut off by the film’s spectral response would be converted into film-visible reds by a display. Il
Detection of forgery may require use of a microscope and maybe some statistical techniques. Even if the pixels are smaller than film grains, pixels are on a regular grid and film grains are not.
Edit: trained eyeballing may also work fine if you are familiar with the look of that specific film.