A long time ago Inon made one of these but the optics were terrible not yielding any part of the image sharp. This version from Laowa looks to be far superior. I would be very interested in trying out this for wide angle macro video underwater. I will probably try and have a port built for it to fit a Nauticam. Do any of you have any thoughts on this.
Check out these links.
https://www.cinema5d.com/snorkel-macro-lens-video-review-laowa-24mm-f14-probe-lens/