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

Maker	Sigma Corporation
Technical data
Type	circular fisheye lens
Focal length	8mm
Crop factor	180 degrees
Aperture (max/min)	f/3.5
Close focus distance	13.5cm
Max. magnification	1:4.6
Diaphragm blades	6
Construction	11 elements in 6 groups
Features
Short back focus	No
Ultrasonic motor	No
Lens-based stabilization	No
Macro capable	No
Unique features	circular fisheye
Physical
Max. length	68.6mm
Diameter	73.5mm
Weight	400g (14.0oz)
Filter diameter	rear (Gelatin filter)
Accessories
Lens hood	none
Angle of view
Horizontal	180
Vertical	180
Diagonal	180
Retail info
MSRP	$1230 USD

External links

• official page