Nikon Lens AF DX Fisheye-NIKKOR 10.5mm f/2.8G ED first look
Based on the manufacturer description, AF DX Fisheye-NIKKOR 10.5mm f/2.8G ED specifications are :
The first fisheye lens developed exclusively for use with Nikon DX format. *
Ultra-wide picture angle of 180 degrees on DX sensor is achieved by producing a smaller image circle (the size of the image that is projected by the lens onto the sensor) enabling a smaller lens diameter, lighter weight and optimal image quality from center-to-edge-to-corner on the image.
Equivalent to 16mm focal length on a 35mm.
Minimum focus distance of 0.14m (5.5 in.) or 0.03m (1.2 in.) from the lens front, makes extreme close-ups possible.
Close-Range Correction (CRC) provides high performance for sharper images when taking pictures up close.
Extra-low Dispersion (ED) glass element minimizes chromatic aberration.
Design enables a combination of wider angle of view with optical characteristics that are optimized for Nikon digital SLR camera sensors.
With starting price about $700, this wide angle lens is actually affordable and I think its a good price since Nikon AF-DX always give the best results.
Go out and take pictures which EMPHASIZE the fisheye. Learn how the lens works, how the distortion "feels". Take ADVANTAGE of the fisheye. If all you use this lens for is a 16mm (35mm equivalent), then your missing the most wonderfull thing about this lens.
Anyone who doesn't understand the charm of the fisheye, heres a photography tip which wont cost you a cent: find a perch ten, or fifteen feet in the air, have a friend (kids are the best choice), and take a shot STRAIGHT down at them. They'll be dead center in the picture, they'll be low on distortion, and you'll have your ENTIRE backyard in the periphery of the shot.