Grantmac

Hmmm that's definitely not ideal. Although I don't currently photograph on the deeper dives it's in my future.

Any speaking to the quality of BTS vs Stix? I have some BTS pieces now which feel almost rigid but haven't had anything from STIX in my hands to compare them with. I definitely want to keep the lens and housing flotation as tight as possible to get my strobes in tight for CFWA. I suppose I could print a port collar which has cut-outs on the side or could modify the BTS/Stix ones to do similar. I'd be hesitant to hack parts out of the Nauticam collar considering it's already a bit light on flotation. I also have a set of these kicking around: https://www.bhphotovideo.com/c/product/592166-REG/Aquatica_17892_Buoyancy_Compensating_Float.html Which I might be able to mount on the WWL, they are too awkward when mounted on the arms.

I adapted an AOI collar to my UWL100 using a hot knife. It's not perfect but works rather well. Importantly it's perfectly neutral so if I remove it and put it on an arm it's not changing anything. That's what I was hoping to achieve. I suppose it's worth seeing if Moziak can get in the Stix collar. I was considering 3D printing a collar in sections to mimic the Stix/BTS system but with a custom fit. Then I can test one piece at a time in my pressure pot if I really want to get fancy.

So I don't currently have the float collar. Looking at specs the lens seems to be about 600g negative without it which would be a rather significant print. The Stix 12 section collar should do it with some customizing, unfortunately expensive to get in Canada with the current tariff situation .

Yes I've read through that and it's definitely interesting. I'm likely to focus on a cheap 3D printed solution which will use a bungee and bolt snap. Getting my whole rig neutral (which I've started a thread on) will be a significant part of the equation.

The Nauticam collar has the lens still rather negative. I'm considering using either the BTS Flat Port collar (no buoyancy specs) or Stixs 12 segment collar. I'd like to get the lens as close to perfectly neutral as possible.

I should have mentioned that I do a fair amount of DPV assisted dives and I'll be looking at mounting options. Less to shoot while scooting and more to get the camera off my body.

The 65 port isn't listed for that lens, can you use it through the whole zoom range? Does your printed gear allow you to switch to macro mode?

I'm a Canadian cold water tech diver learning photography. I've gone from a GoPro, to a phone in housing with video light/diopter to now I've got an A6500 in a SeaFrogs Salted and some Z240s. Mostly doing CFWA with a bit of macro. I very recently bought a package with a GH4, Nauticam housing and WWL-1 (mainly for the WWL-1 and the price was right). Currently doing some port and lens planning around that MFT system.