I was recently able to get my Z8 in the water for the first time and enjoyed using it, and enjoyed using the WWL-C with the 24-50. I shot it in the f11 - f13 range and did not get much opportunity to experiment with any wider apertures and effects on image detail, softness, etc. I recall from the "old" days a discussion of the "best" aperture range when using the water-contact lenses, but was wondering if anyone has done any recent testing with the WWL-1 and WWL-C or has any experience/opinions on best aperture range with these lenses? Especially if used with a Nikkor Z...

I thought i should ask before I go and try to reinvent the wheel?

Edited Wednesday at 07:34 PM1 day by JohnD

In the "old" days there was more than just a discussion, at least for the WWL-1. This test was shown on the Nauticam site, no idea which lens they used behind it. f/8 to f/11 always worked well for me on MFT.

The 14-42mm is an Olympus M 4/3 lens with an Olympus M4/3 camera. The 7-14mm M 4/3 lens needed a larger than 180mm port to really work well. A 200 or 230mm dome with proper extension.

That looks vaguely familiar. I have this memory of using the WWL-1 around f11 on M43 and that is the aperture where I started with the WWL-C that I am using with the Nikon. If I can, I will try some test shots at wider apertures, but sometimes on dive trips conditions aren't right to make any meaningful comparisons. I am sort of guessing I could go to f8 before things get too soft, but don't know.