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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
Soft case
Special Features Quick-shift focusing system
Dirt resistant SP coating on front lens element

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Read more about the PENTAX Focus Function here.

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