Very cool idea, documented in a calm and clear video. From the description:

> Upcycling a phone LCD into an optical contraption. > Pairing a DSLR lens with a mirrorless camera body leaves a gap that has to be filled by an adapter mount. I thought it would be fun to build a computer that fits in that mount.

> A transmissive LCD acts as a programmable iris, inserting digital effects into an otherwise purely optical pipeline. It enables some interesting manipulation of the lightfield such as in-camera parallax wobbles, as well as animated bokeh effects.

Aah! I made something similar to this near the end of my PhD!

Rather than having an aperture in front of the imaging plane, I elected to place a controllable aperture at the imaging plane. Then, by selectively placing an aperture or pattern you can 'search' for a light source of interest and 'tune out' background light from the rest of the scene.

The application was for optical wireless communications (free space - like having a room luminary be modulated and picking it up from a phone). I was trying to maximise the SNR of a link with a 'solid angle filter'. The end goal was to try and make it work to filter out the sun (with the help of some optical filters too).

I also used a LCD however for my application it was surprisingly hard to find ones that worked well (in terms of having a high contrast ratio with a small enough pixel pitch) for the wavelength I was using. My links were at 405nm (which was selected as it's 'sufficiently dark' in the ASTM solar spectrum).

I ended up looking at resin 3D printers - as they also use 405nm light to cure prints. There are application-specific displays such as DXQ 608-X04 which was the one I used. They also require very high resolution for high-quality prints, which is a nice bonus.

The whole thing was really interesting but ultimately I never ended up writing it up into papers - just in my thesis. I borrowed a lot of what I learned from the single-pixel camera papers out there, lots of coded-aperture work! I never got to the point of properly 'imaging' a scene with coded apertures (as I had a single high-speed detector) but it's definitely something that's possible.

That felt a little like watching a modern version of Primitive Technology. Cool project, very nice mode of presentation.

This is authentic contemporary photography, like the hole in the wall, like Daguerre or Niépce... Ansel Adams.

Thanks, very good work.