NA-A7 buoyancy

I have a sony A7 with a 10-18mm in a NA-A7 housing and some.

Do you know if it has a negative or positive buoyancy?

Thank you in advance

Why not just fill a bathtub and check to see if it floats or not?

I would not ask here if I could perform a quick test.

OK, sorry. You said that you already have it in hand, so it seemed reasonable to suggest giving it a try.

I'm at the airport now and once arrived at destination I won't have the time to test. Housing it's there and I'm trying to understand if I can mount it on my scooter with my current gear.

I like having housing and lights perfectly neutral

This is a guess - but based on most of the other Nauticam housings - its going to be slightly negative.

what size is your dome for the 10-18?

that will have an impact. larger dome = less negative the set up will be