Has anyone built their own dome port? I've used an 8" dome but was looking to test a ~17" dome for split shots on my Nauticam N120 DSLR housing. I looked at purchasing a dome port of this size and the Matty SMith ones look awsome but they are $2k+ which is way out of my budget. I've read a number of posts and watched videos online but didn't find anything on this forum.

I've read the "Barry Guimbellot designs DIY small dome port for CFWA" and it looks like there might be more info on wetpixels but I didn't get my account approved before it went down so I cannot access those forums.

Edited 5 hours ago5 hr by brightnight

I've wondered if the BluRov hemispherical dome ports could be used to make a fisheye port. They are cheap enough and very robust.