Summary: I shoot surf with this lens and I couldn't of asked for anything more perfect. Although it is well built, the zoom and focus ring seem to shift sometimes with vibrations but for the most part it is a wonderful lens.
Excerpt: I purchased this lens to use in the ocean. I have a Nikon D7000 and SPL Waterhousing. The lens is great! This is my second Tokina lens (first being the 11-16mm). They have great build quality and the images are clear and sharp.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Strong Construction
Excerpt: I use this lens with my D7000. I use it for my Freedive Underwater Photography. It's great for underwater landscape. I don't use any artificial lighting. I don't like the fact that it won't focus in Live Mode... I wish Nikon and Tokina could fix this...
Pros: Durable, Easily Interchangeable, Strong Construction