Leica Mz6 microscope - phone camera adapter

Stereo microscopes are common in electronics etc labs, and would be convenient to be able to capture photographs of what one sees. Our Leica MZ6 does have another viewport for attaching a camera, but that would apparently require an expensive adapter and an SLR with a suitable lens, rather expensive for our random needs. Cheap USB microscopes can be used for that, but accurate focusing with them is much harder.

This adapter allows most phone cameras be used with a Leica MZ6 microscope (probab