Zen Underwater updates its 230mm dome port for Nauticam
Zen Underwater](http://www.zenunderwater.com/index.php) has announced that they have discontinued their original DP230 glass dome with Nauticam bayonet fitting. Its replacement, the DP-230-N120-1124 features a larger inner diameter to accommodate the Canon 11-24 lens, when used in conjunction with the Nauticam 70mm extension specifically designed for it. The new port also ships with a user installable locking tab to allow it to be used with other Nauticam extension rings.