Hi everyone, Sorry for the very new account, I have been sleuthing lots of the GH4 threads for quite a while and was excited to see that this one is still fairly active and was finally tempted to make an account and get involved! I have been a DSLR/ikelite user for a few years but I think I'm pretty set on moving across to a GH4 in the Nauticam housing for video work. I've seen a lot of information about macro flip diopters and the WWL-1 but am unsure how they actually work during the dive. For example, would I be able to take diopters off/on during the dive, or take the WWL-1 off/on during the dive? Or do they have to be set up prior to getting in the water? I'm mainly shooting small/medium fish with a few nudibranchs and blennies chucked in there. It would be absolutely fantastic to have a set-up where I could switch between a macro diopter and the WWL-1 during a dive. Does this exist? If so, what lens do you recommend for this kind of video work? Please let me know if you're able to help, I'm quite lost with the Nauticam set-ups. I live in New Zealand and we don't have any Nauticam suppliers here so thank you for all your information and discussions so far, it has been incredibly useful!