I use the "Sigma 10mm F2.8 EX DV Fisheye HMS" lens on my Canon 550D and am completely satisfied. In my search for a suitable fisheye lens, I initially wondered whether I should take a good half as expensive Walimex lens. Choosing chose mainly due to the lack of auto-focus in favor of the Sigma lens. (The Fisheye lens Canon has been excluded early from the election, due to the almost twice as high price.)
For the lens, the lens works well with my Canon. The lens is very well built and stable. Amazingly, I found the perspective that really covers almost 180 °. The autofocus is very fast, the minimum distance is very low and the image quality I can not complain.
With the delivery of the lens is still a small storage bag.
I think I chose a lens with a very good price performance ratio and will definitely continue to still have fun with the lens.
