This Guy Converted His Nikon FM Into a Digital Camera with a Custom Sensor Cartridge

A Japanese tinkerer who goes by the name Sanasol has created something pretty cool. Using a homebrew sensor cartridge, he’s converted his classic Nikon FM SLR into a functional digital camera without having to alter the 35mm film camera at all.
First spotted by Nikon Rumors, Sanasol says the mod is inspired by an idea that first popped up nearly two decades ago: the EFS-1. That product allowed you to insert a digital sensor and processor as a discreet unit inside any film camera, without altering the film camera itself.
The electronics are mostly housed where the film canister itself would normally go, and the sensor sits in the film plane:

We’ve seen this sort of idea crop up many times over the years: first as a concept, then as a failed IndieGoGo campaign, and most prominently as the (much bulkier) I’m Back products that actually came to fruition.
Sanasol’s creation is much closer to the original concept: a small, discreet cartridge that you insert into a 35mm film camera in much the same way you would insert a roll of film. Except that every time you take a photo it transmits that photo to your …
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