Produces circular images with an angle of view of 180-degrees when attached to a full-frame digital or 35mm film SLR camera
Maximum aperture of F3.5, a minimum focusing distance of 5.5 inches, and a maximum magnification of 4.6x
Super multi-layer lens coating reduces flare and ghosting
Gelatin filter holder at the rear, allowing the use of gelatin filters
The Sigma 8mm f/3.5 EX DG Circular Fisheye Auto Focus Lens for Canon produces circular images with an angle of view of 180 degree when attached to a full-frame digital or 35mm film SLR camera. It has a maximum aperture of F3.5, a minimum focusing distance of 13.5cm (5.5") and a maximum magnification of 1:4.6. The special fisheye design allows maximum creative expression. Sigmas super multi-layer lens coating reduces flare and ghosting, a common problem with digital cameras. The new lens power layout reduces color aberrations..