Sigma 8mm f/3.5 EX DG lens

The Sigma 8mm f/3.5 EX DG is a photographic lens introduced on 9 August 2006. It is a circular fisheye lens, designed to project a 180-degree field of view in all directions onto a circular image when used on a full-frame camera. The lens is available in Canon, Nikon, and Sigma mounts.

Sigma 8mm f/3.5 EX DG circular fisheye
MakerSigma Corporation
Technical data
Typecircular fisheye lens
Focal length8mm
Crop factor180 degrees
Aperture (max/min)f/3.5
Close focus distance13.5cm
Max. magnification1:4.6
Diaphragm blades6
Construction11 elements in 6 groups
Features
Short back focusNo No
Ultrasonic motorNo No
Lens-based stabilizationNo No
Macro capableNo No
Unique featurescircular fisheye
Physical
Max. length68.6mm
Diameter73.5mm
Weight400g (14.0oz)
Filter diameterrear (Gelatin filter)
Accessories
Lens hoodnone
Angle of view
Horizontal180
Vertical180
Diagonal180
Retail info
MSRP$1230 USD

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