They've been around for a very long time for medium and large format cameras: https://en.wikipedia.org/wiki/Digital_camera_back https://en.wikipedia.org/wiki/D

They've been around for a very long time for medium and large format cameras: https://en.wikipedia.org/wiki/Digital_camera_back https://en.wikipedia.org/wiki/Digital_camera_back This product definitely looks like it would be challenging to design an manufacture. Without having seen this post, I wouldn't have imagined it would be possible to fit a sensor and associated electronics in the small space meant for film!