Hi,
I am still trying to find the answer what WA lens to purchase...
However, I am leaning to the sigma 10-20 more than to the tokina 12-24. In some previous articles I saw couple guys thinking of getting this lens... Still have couple weeks to the next diving trip so I am trying to colect as much information as possible.
How is the lens?

thanks

Martin

I've only seen positive reviews about it. Here is a recent post with a sample:

http://wetpixel.com/forums/index.php?showtopic=9700