This one specific version is the Tokina AT-X 107 f/3.5-4.5 DX NH, where NH stands for “no hood” After years of sawing-offs that’s FINALLY addressed to a full-frame 35mm sensor use.
The other new version is a “video version” Tokina AT-X 107 f/3.5-4.5 DX NH V where V stands for video. The hood is removed and the focusing rubber is difficult to reach, in exchange for a solid gear for video focus-pulley stuff.
This lens is very commonly used in underwater photography.
Since it was one of the first available, so there are many specific domes, ports, and housings.
Useful links and contributions:
– Michael Thoby page on the lens
The lens is currently AVAILABLE IN THE MARKET
pruducer’s page for the Tokina 10-17 DX