Whoa... I hope they are using the 220 add-on.

[vpwphoto]

People will build anything. I saw a Rollei full line "family photo" and spied what I thought was this, and Google confirms it was a thing.
Dead Link Removed

Again, I couldn't imagine sealing that thing up with only 12 exposures, I suppose 70mm might have been an option?

 

[AgX]

The casing took a plain Rolleiflex.

 

[vdonovan]

I like the idea of changing flashbulbs underwater on that thing.

 

[AgX]

What would be the problem with that? (The same fiddling as ashore. Or do those bulbs float? Never checked that.)

 

[vpwphoto]

https://www.flickr.com/photos/heritagefutures/5265026670/in/set-72157633900025732

 

[AgX]

What surprised me was that it lacks any isolation at the lamp fixture and the plug.

Seemingly the conductivity of sea-water is less than I thought. (I know, that this is about low voltage.)

 

[ic-racer]

No, you can't flip the 12/24 lever with the camera in the casing.

 

[bdial]

I saw a Rolleimarin for sale once at a flea market in Louisiana. They guy didn't want much for it, and didn't really know what it was. But it was incomplete and I didn't have a Rollei to put in it, so I passed.
It was impressive though.

 

[David A. Goldfarb]

Scroll down, and you can see Peter Gowland posing with one of these on the beach:

http://www.petergowland.com/action2.html

 

[itsdoable]

Back before digital, 120 film underwater was not unusual. Nor were flashbulbs (at least they didn't explode!). No digital age machine gunning...