shokwaav

From INON UFL-G140 ZD user manual: I suppose the lens is working in terms of it not vignetting... I just hoped the sharpness would be better.

Don't have my Gopro with my at the moment, I believe the 8:7 setting is the entire sensor, so its the widest available aspect ratio. I believe I had Hypersmooth on. The GoPro should be taking 8:7 RAW photos too, I didn't take any photos with the GoPro this trip though.

You're correct! Yes they're different lenses... I might have to try the AOI lens now.

Another 8:7 video with the Inon lens, placed in a 16:9 timeline so the corners can be seen. Some of the warping could be due to the stabilization applied in DVR. A bit disappointed with the corners when using the 8:7 aspect ratio. However, the labs firmware makes editing Gopro videos significantly more pliable.

GoPro 11, INON UFL-GR140 ZD, Labs firmware, 8:7 5.3k 30fps, 10-bit colour, GoPro LOG profile (WIDE + LOGB=400), NR01=0, Stabilised, colour graded + noise reduction in DVR I think the sharpness still falls away in the corners, but it does let you get closer. Can provide RAW video files if anyone wants.

It "works" with the 28-60mm Sony lens, but vignettes as expected in the wider focal lengths.

How was your experience with the 16-25? Which 180mm dome are you using? The N100 180mm dome (#37129) or the N120 180mm dome (#18809)?

Does the MFO-1 work with the Sony 28-60mm?

Practically in your situation, if you're not interested in full frame housings, is to get a better lens/port combo. Even upgrading to the A7RV sensor, not many lens/port combos can resolve to the complete 61MP, especially at the corners. A7C2, 28-60mm w/ WWL-1B, 1/80s, f/8, ISO 100, no strobes, centre crop, corner drop and side crop

A7C2 (33 megapixels, 7008 x 4672), 28-60mm, WWL-1B, no strobes 1/160s, f/9, ISO 500 100% crop below. It probably is sharper than the RX100, but we're dealing with a bigger sensor, much more expensive wet lens.

Just a quick google search: https://www.backscatter.com/reviews/post/Sony-a6500-Camera-Underwater-Test-and-Review They suggest the Tokina 10-17mm with an adapter.

Don't these two sentences contradict each other then? I think everyone in the comments are replying to your initial assumption that your photos are not sharp because of the sensor, which I think my example can help disprove. I agree that it may be a combination of your lens and dome combination, although just looking at the Nauticam port chart, it already is the "ideal" solution. Of course, there may be sharper options out there for wide angle, but unfortunately, I'm not too familiar with the APS-C options out there, so others may be more helpful.

I'm on the new M4 MBA without any issues. Could it be memory usage? How much RAM do you have?