Sigma 8mm f/4 EX DG Circular Fisheye

 
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Lens Specifications
Name Sigma 8mm f/4 EX DG Circular Fisheye
Image Circle 35mm
Type Fisheye Prime
Focal Length 8mm
APS Equivalent 1.5x: 12mm; 1.6x: 12.8mm
Max Aperture f/4
Min Aperture f/32
Diaphragm Blades 5
Lens Construction 10 Elements in 6 Groups
Diagonal Angle of View(Based on image circle) 180 degrees
Focus Details
Front Element Rotation ?
Zoom System n/a
Closest Focus 20cm / 7.9 in.
Magnification Ratio 0.07x / 1:13.9
Filter Size Rear (Gelatin Filter)
Dimensions(Length x Diameter) 63mm x 73.5mm / 2.5 in. x 2.9 in.
Weight 320g / 11.3 oz
Notes Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax; Included Accessories: Gelatin Filter Holder, Fitted, Padded Case
Typical Online Price US$659.00