
Instagrammer, YouTuber and photographer, James Warner, (aka @_snappiness_) has uploaded a fascinating Reel about his collection of Nikonos underwater lenses. Or rather, how he's adapted them to fit onto a mirrorless camera, his Sony A7 II.
Far from being a simple off-the-shelf purchase, James had to design the adapters himself. That's right, the video (which you can see below) even shows his CAD design and an adapter being 3D-printed.