an alternate view of the world, warning this lens is addictive both my son and i have been sharing this lens to great effect buy it if you want to have a good lens for the money well made like most sigma lenses and comes with a decent pouch and lens hood and you want a diagonal fisheye view of...

I bought this lens for a STEAL of a price through Amazon's Warehouse Deals. I've never bought anything used from them before, so I was a bit skeptical and I was worried that the condition of the lens might be bad. Was I wrong! This lens only cost me a fraction of a new lens...

Excellent lens, the macro effects are outstanding, this is what I was looking for in a micro lens. I prefer to use MF on macro photography as it gives me more control of the background.

Fisheye lenses aren't like ordinary wide-angles. For a start, their angle of view is wider (a full 180 degrees on a Nikon DSLR) and second they don't attempt to correct straight lines, rendering them instead as curves. These two factors produce distinctive and highly odd renditions of the world.

Compared Nikon lens and Sigma. After evaluation came up to a conclusion that Sigma is better on my D3. Took great photos of night Manhattan.

I bought this lens specifically for its Fish-Eye barrel effects for video. It's a very expensive lens for this single effect so if you're looking for a good wide-angle lens for a cropped sensor camera such as the Canon 7D, I highly recommend the Tokina 11-16mm f/2.8 AT-X 116 PRO DX, which is nearly...

Amazing wide-angle for Canon 7D or any other 1.6x crop sensor; Bought this for video work with my 7D and have used it many times, either for the fun fish-eye effect, or to show a 180 degree panorama.

Not sharp at the f/2.8 range in comparison to other Canon or Tokina lenses; Stopped up to the 4 range and you'll see a big difference but lose a lot of the low light capability that makes this lens appealing.

This was a gift for my son's 25th birthday, he is a skater, surfer, snowboarder, He love's this lens. I is great for the Skate Barn photo's. I would recommend it!

Easily Interchangeable; Fast / accurate auto-focus; Lightweight

everything is good!

A real funlens, incredible sharp from f6.3, beautiful colours, great flare-control, very nice construccion! Only the CA′s are quiete strong in both corners, but we are talking here about 10mm!

sharp from f4.5; very sharp from f6.3; nice building; f2.8 for interior

CA?′S - corner

Clear focus (don't use auto ever) wide angle shots good value for the money.