The Specs

Physical Specifications
Length 2.8 in
Diameter 2.9 in
Weight 11.7 oz
More Info
URL http://www.sigmaphoto.com/product/15mm-f28-ex-dg-diagonal-fisheye
Additional Specifications
normalized-Weight 11.7
Optics
Minimum Angle of View 180 degrees
Maximum Angle of View 180 degrees
Min Focus Distance 5.9 in
Min Focal Length 15 mm
Quick Glance
Lens Type Fisheye Lens
Max Aperture 2.8 1/f
Max Focal Length 15 mm
Min Aperture 22 1/f

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