Nikkor 10.5 F/2.8

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

This is the first fisheye lens developed exclusively for use with Nikon DX Format, it is equivalent to 16mm focal length on 35mm.

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