The Specs

Optics
Max Focal Length 30 mm
Min Focal Length 30 mm
Max Aperture f/ 1.4
Filter Size Supported 62 mm
Quick Glance
Max Focal Length 30 mm
Lens Type Wide Angle
Max Aperture f/ 1.4
Compatible Camera Mount Pentax SLR Cameras
Usage Information
Lens Type Wide Angle
Compatible Camera Mount Pentax SLR Cameras
More Info
URL http://www.sigma-photo.com
Physical Specifications
Weight 15.17 oz
Dimensions 2.32" Length x 2.97" Diameter

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