Simple samples shot to demonstrate the differences between the Sigma 10-20mm, the Sigma 8-16mm and the Nikon 10.5mm fisheye. You can click on samples to see larger copies of the images.
The first wideangle I owned, and a real gem: wide, sharp, good colors and built to last. The mechanics were world class and the optical quality followed close troop.
My first ever fisheye lens, and a great performer. Both the mechanics and the optical quality is good, and the lens produces a stunning 180 degree vista on a full frame body
A really wide zoom (like REALLY!) even on a DX-body, which it's made for. Rectilinear in spite of its very wide angle of view and definitely a lens I'm going to love.