Forgive me if this is a dumb question, but how does it all seal up?

Is there glass in the nauticam adaptor (I can't tell from the pictures 😁)? So the camera is in the housing as usual, but with no lens attached, then the adaptor is fitted as a normal port would be and the lens just connects on the wet side by bayonet?

Or is there no glass in the adaptor, but a seal between lens and adaptor?

(Not planning on getting anything like this but just curious)

Thanks!

The lens has a rather significant o-ring which seals to the adapter.

11 hours ago, Grantmac said:

The lens has a rather significant o-ring which seals to the adapter.

Ah, thanks!

Think I'd probably be a bit nervous to put that on an expensive body..... although I guess the normal ports are just an o-ring too, but less vintage

Cheers

It's really the same as a port.

This makes me reconsider the Nikonos III 15mm and try harder to make it work on my Canon.

I've gotten in a couple of dives with the 12mm fisheye on an ASPC camera. Perspective is nice but definitely not all that sharp, although uniform across the FOV. Feels like a 20mm rectilinear equivalent on the smaller sensor.

Did some pool testing today, at f3.5 and infinity focus everything from a meter out is basically in focus as it'll get. I might be in the situation of needing to get the camera moved closer to the lens.