Panasonic 12mm 1.4 Summilux

I heard this new M43 lens is coming soon, would it be useful underwater? It seems good for video, maybe a bit too narrow. Just curious, I already have the 25mm 1.4 which I really love, can this lens be used underwater as well? Does it fit in a nauticam port?

Thanks in advance.

I'll be very interested in this lens too. Shame it has no OIS thou.

I think that for UW use it's really narrow. Even with a multi-aspect sensor of an old GH2.

On a GH4 in 4K its FOV would be even narrower. For land use, current Olympus 12mm is a terrific lens already.

M43 lacks of an extreme underwater WA prime lens. Of course 12mm is already extreme for typical land use. I would like to see a 10mm rectilinear and a fisheye lens less extreme than current 8mm. A sort of M43 Tokina 10-17mm...

Ok, I wake up

EDIT:

1300 USD.

http://www.bhphotovideo.com/c/product/1259339-REG/panasonic_h_x012_leica_dg_summilux_12mm_f1_4.html

Way more expensive than I expected, let's keep dreaming

I do use the 25mm pany underwater. I use it for fish portraits. I use it in a port that I use my 60 mm in (which is not the right port) but it takes at times really nice fish portrait shots. I have a Nauticam housing. On land it is an astounding lens. Crisp and fast.