Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Canon
Sigma's 10mm has a bit less of an exaggerated look but has an excellent minimum focusing distance. The lens can focus with subjects 0.7 from the front of the lens, so it's excellent for macro shooting. The Sigma still uses a nice wide f2.8 aperture to let in plenty of light. Capturing a 167 degree angle, the lens produces a rectangular image. Sigma has included a gelatin filter at the rear and a built-in hood at the front. Weighing in at just over a pound, this lens is also compact.