The Specs

Optics
Max Focal Length 15 mm
Min Focal Length 15 mm
Min Focus Distance 5.9 in
Max Aperture f/ 2.8
Maximum Angle of View 180
Min Aperture f/ 22
Additional Specifications
Frequency Band This lens is supplied with a gelatin filter holder at the rear, allowing the use of gelatin filters.
Lens Construction 7 Elements in 6 Groups
Front Camera Sigma
Maximum Angle of View 180
Brand Name Sigma
Quick Glance
Max Focal Length 15 mm
Lens Type Fisheye
Camera Mount SIGMA CANON NIKON (D) SONY MINOLTA PENTAX
Max Aperture f/ 2.8
Min Aperture f/ 22
Other Features
Included Components 15mm f/2.8 Fisheye Lens Gelatin Filter Holder
Usage Information
Lens Type Fisheye
Compatible Camera Mount SIGMA CANON NIKON (D) SONY MINOLTA PENTAX
Warranty
Warranty Information 1 Year Limited Warranty
More Info
URL http://www.sigma-photo.com
Physical Specifications
Diameter 2.9 in
Weight 13 oz
Length 2.6 in
Dimensions 2.56" Length x 2.89" Diameter

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