Tokina 10-17 mm fisheye for Nikon mount

Dear all,

I am looking to buy my first Tokina 10-17 mm fisheye for Nikon cameras. I came across 2 versions - with and without lens hood. The one without the lens hood costs $20 more. What are the practical differences and which one is recommended for underwater use behind a small dome port?

With lens hood:

http://www.adorama.com/TN1017NKAF.html

Without lens hood:

http://www.adorama.com/TN1017NKAFNH.html

Thank you.

The non-hooded versions allow full frame cameras to utilize the 10-15mm portion of the lens without vignetting. It should be stated in the specs somewhere I'm sure.

If your mini-dome has a non-removeable lens shade, then the point is moot anyways.

Interesting that it the vignetting happens at the 16-17mm range on full frame cameras.

Thanks for the responses. I will be using the lens on a cropped sensor camera. In that case, is there any reason why I should not just go for the one with the lens hood?

The only reason I can think of is if you intend to resell it to someone with a full frame camera or if you can't find the hooded one in stock.

Thank you everyone for your advice. I've decided to get the standard one with the lens hood.