Sigma 8mm f/3.5 EX DG lens

Key features
Sigma 8mm f/3.5 EX DG circular fisheye

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

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.

External links

Sigma 8mm f/3.5 EX DG official page

Sigma lenses

DC Lenses (Crop-sensor DSLRs only)	4.5mm F2.8 EX DC Circular Fisheye HSM \| 8-16mm f/4.5-5.6 DC HSM \| 10mm F2.8 EX DC Fisheye HSM \| 30mm f/1.4 EX DC HSM \| 10-20mm f/3.5 EX DC HSM \| 10-20mm f/4-5.6 EX DC HSM \| 17-50mm f/2.8 EX DC OS HSM \| 17-70 f/2.8-4 DC MACRO \| 18-50mm f/2.8 EX DC Macro \| 18-50mm F2.8-4.5 DC OS HSM \| 18-50mm F3.5-5.6 DC \| 18-125mm F3.8-5.6 DC OS HSM \| 18-200mm F3.5-6.3 DC \| 18-250mm F3.5-6.3 DC OS HSM \| APO 50-150mm F2.8 EX DC HSM \| 55-200mm F4-5.6 DC

Wide-Angle Zoom	12-24mm F4.5-5.6 \| 17-35mm 1:2.8-4 EX DG ASPHERICAL HSM

Standard Zoom	28-70mm F2.8 EX DG \| 28-70mm F2.8-4 DG \| 28-300mm DG \| 24-70mm 1:2.8 EX DG HSM

Telephoto Zoom	50-500mm F4-6.3 DG \| APO 70-200mm F2.8 II EX DG MACRO HSM \| 70-300mm f/4-5.6 APO DG Macro \| 100-300mm F4 EX DG HSM \| 120-300mm F2.8 EX DG HSM \| APO 120-400mm F4.5-5.6 DG OS HSM \| APO 150-500mm F5-6.3 DG OS HSM \| 200-500mm f/2.8 EX DG \| 300-800mm F5.6 EX DG HSM

Wide-Angle Prime	20mm F1.8 EX DG \| 24mm f/1.8 EX DG \| 28mm F1.8 EX DG \| 14mm 1:2.8 EX HSM RF ASPHERICAL

Standard Prime	50mm f/1.4 EX DG HSM \| 85mm f/1.4 EX DG HSM

Super Telephoto Prime	300mm f/2.8 EX DG HSM \| 500mm f/4.5 EX DG HSM \| 800mm f/5.6 EX DG HSM

Distorting lenses	8mm f/3.5 EX DG circular fisheye \| 8mm f/4 EX DG circular fisheye

Macro Prime	50mm F2.8 EX DG \| 70mm F2.8 EX DG \| 105mm F2.8 EX DG \| 150mm f/2.8 APO Macro EX DG HSM \| 180mm F3.5 EX DG