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smc PENTAX-DA 21mm F3.2 AL Limited - Specifications

Product data
Article Number 21590
Release date Jan 1, 2009
Technical Specifications
Focal Length 21mm
Equivalent to 35mm format 31.5mm
Maximum aperture f/3.2
Minimum aperture f/22
Number of Diaphragm Blades 7 / Fully automatic
Angle of View 68 degrees
Construction 8 elements in 5 groups
Focusing Range 0.2m to infinity
Magnification approx. 0.17x
Filter size 49mm / 43mm (with bundled Food)
Mount PENTAX KAF Bayonet
Weight 140g (4.9 oz.)
Dimensions (Length x Diameter) 25mm x 63mm (2.5 inch x 1.0 inch)
Kit Content Front cap
Rear cap
Lenshood
Soft case
Special Features Quick-shift focusing system
Dirt resistant SP coating on front lens element

In order to discover the products which are being developped and the ones which are planned, you can download our roadmap in pdf:

To see our K-mount currently available range, please download Lenses & Accessories brochure.

Visit the PENTAX Lens Technology web page to discover more about the PENTAX lens construction.

Read more about the PENTAX Focus Function here.

You can use the PENTAX Lens Glossary to learn more about its features.

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