Well, that is quite a bit cheaper than the Nauticam housing that I bought, but you are right - there isn't much information on ports and lenses.

Well, I have to say I was completely stunned. We're talking about 1500 USD versus 4500 USD for the housing alone. That's a 200% difference.

Then, of course, you would need to see it up close. But I really can't figure it out.

19 hours ago, Davide DB said:

I discovered that in their new aluminum housing line they have a GH7 housing and many all but I couldn't find a Panasonic lens chart. 5h3 new macro ports are not listed even on the OM lens chart. Furthermore I found their extensions in another leaflet.

I couldn't understand if they have one post size for all. The GH7 housing has a huge port lens opening.

https://www.seafrogs.com/Products/GH7.html

I think they might all be the same port - their aluminium housing catalogue shows a lot of different housings but all the ports are in one section and all start with SF125 (I'm assuming they're 125mm wide?)

https://www.seafrogs.com/Download/1828674072319315968.html

https://www.seafrogs.com/viewfilebizce/1852611896599064576/%E9%93%9D%E5%A3%B3%E5%AE%A3%E4%BC%A0%E4%B8%89%E6%8A%98%E9%A1%B5v2_%E5%94%90%E5%89%91%E4%BA%91.pdf

Edited October 4, 2025Oct 4 by Yorkie88

I asked Seafrags info on their Panasonic GH7 alu housings and they replied me that the Alu housings engineer team is completely different from the plastic housings team. They gave me the GH7 purt system: