Love the effect this lense does to buildings and landscape. The bending effect is why I purchased it. Also is a great wide angle lense if you take into effect the bending of edge subjects.

Consistent Output; Easily Interchangeable; Fast / accurate auto-focus; Lightweight; Strong Construction

This little lens is just right for some flavor shots, but certainly not the only lens you should own. It's a little slow, a little soft, but has all the character and fun-factor you'll need to sweeten up a wedding reception. If you're thinking of buying it, do it! You'll be glad you did.

Yes, I would recommend this to a friend

Consistent Output; Durable; Easily Interchangeable; Lightweight; Quick Focus; Sharp Focus

Difficult to Clean

I already had a superwide for my D300, but when a friend had to sell this lens in a hurry so his wife would let him buy some other lens, I purchased it for only $250. This lens is really sharp and might be one of the best fisheyes built with respect to optics.

Great DX Fisheye that can be shaved and work well on FX; This is pro-level glass in my opinion and a lot of fun

The only con might be that people sometimes overuse a fisheye for it's distortion

I am still learning what is possible with this lens but the results so far have been impressive Macro Landscape Architecture Night photography

Consistent Output; Durable; Easily Interchangeable; Lightweight; Quick Focus; Rugged; Sharp Focus; Strong Construction

I love this lens. It's probably my new favourite, even if not the most practical, and with its small size and relatively slight weight it never leaves my kit bag. My Tokina 11-20mm f/2.8 is a fantastic lens and very wide, but the extremely close focusing distance and 180 degree FoV of this fisheye...

It can set mood by changes in light over a wide area. I've got a shot of a domed enclosure taken by laying the camera on the floor and shooting straight up, it gets lots of comments in my portfolio.

Great lens; Getting really close to the subject works.

None other than the exposed glass

Excellent product.

I was debating with myself for about a year before I finally decided to buy this lens. It is a very specialized lens and can't be used that often. At least that's what I initially thought about this lens.

Very sharp in the center; rivals the best primes !! (well it is a prime too; It is very close focusing - 14cm- and with the extreme depth of field you can shot pictures from literally inside flowers; Max aperture of 2.8 comes handy shooting in the twilight zone

CA - but can be easily corrected in PS-ACR; Other than that : NONE; Well; you have to be carefull not to get your hands/feet in the picture but that is not a weakness of the lens; but comes with 180° diagonal coverage

Great lens. Works perfectly. Returned it though. Not much use for the effect.