New Subal Domeport 10''

Subal announced that it is going to release a new 10'' Super Dome on DEMA.

What is the exact advantage of a 10'' over a DP-FE2 (8'') Domeport? I figured, since a DP-FE2 works fine with a 10.5 fisheye on DX, does this have to do with Full Frame camera's shooting wider angles? Does a larger dome have a positive effect on the optics for DX format?

Cheers

Vincent

Sharper corners w/ Nikon 12-24, 14-24, Canon 16-35. How much sharper remains to be seen

It should be slightly better for over/unders too. The bigger the port, the better the water line looks. But as Ryan says, how much better remains to be seen.