I was using this on a NEX7 setup on a Nauticam housing. It's a fairly sharp little setup depending whether you're a pixel peeper or not. I now shoot with a Sony a6500 and a Canon 8-15mm Type L fisheye in a modified N120 4.33 FE port system. I can use this same modified port for the Zeiss 16-70 zoom and the Sony 90mm macro. So, I have moved on from the APS-C N85 port system (at the cost of a small fortune).
Depending how much money you want to spend, this is nice and lightweight portable N85 port set-up to be used in a Nauticam 4.33 dome. I actually have a modified N85 dome that has a macro mount attached to it's shade wings. When I was using N85, I also modified a top of the line Zeiss 12mm Touit lens that fits into the N85 4.33 port. Normally you need a wider dome setup (like my N120) but I worked with Zeiss to remove the shade so it would fit the N85 port system.
You can also use the Sony 18-55 kit lens with a close up wet lens with the 4.33 fisheye port as a sort of single dive lens where you have medium wide angle and super-macro. Take note that the 4.33 port needs a 10mm mini-extension for proper lens placement for the Sony 18-50 and Zeiss 12mm.
This all becomes a very nice and affordable lightweight system to give you fisheye wide angle (16 w/ FE adapter), 16mm prime, 12mm Zeiss (one of the sharpest lens on the market), and medium 18-50mm zoom with the ability to do supermacro (a nice set-up for video and single dive use). All with one 4.33 Mini-Fisheye port!
All the above equipment is listed on Scubaboard at very reasonable (cheap) prices, including a Nauiticam NEX7 housing. If you're looking for a whole system on a small budget, it's a good way to go. Everything is in mint like new condition. They are all listed now on the 1st and 2nd page below the link to the lens and converter. Of course, if you are shooting with a different housing than Nauticam, then your options are different.
Sometimes I want to go back to The NEX7, because of it's lightweight size and packability, but my Sony a6500 isn't much bigger and I'm in a different league of lens for sharpness and pixel peeping, but not necessarily overall angle of view capability.
Sorry, I don't have time now to dig through all my photos and tell you which one went with which lens.
Hope this all helps.
Marshall