The Specs

Optics
Max Focal Length 21 mm
Min Focal Length 21 mm
Max Aperture f/ 3.2
Filter Size Supported 43 mm|49 mm
Quick Glance
Max Focal Length 21 mm
Lens Type Wide Angle
Max Aperture f/ 3.2
Compatible Camera Mount Pentax Digital SLR Cameras
Other Features
Included Components smc P-DA 21mm F3.2 AL Limited Wide Angle LensLens Hood MH-RBA 43mmDA 21mm Lens CapDA 21mm Lens Soft Case
Usage Information
Lens Type Wide Angle
Compatible Camera Mount Pentax Digital SLR Cameras
More Info
URL http://www.ricoh-usa.com
Physical Specifications
Weight 4.90 oz

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