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DA* 55mm F1.4 SDM - Specifications

Product data
Article Number 21790
Release date Jan 1, 2009
Technical Specifications
Focal Length 55mm
Equivalent to 35mm format 82.5mm
Maximum aperture f/ 1.4
Minimum aperture f/ 22
Angle of View 28.6 degrees
Construction 9 elementa / 8 groups
Focusing Range 0.45m - infinity
Magnification 0.173X Max
Filter size 58mm
Mount PENTAX K-AF
Weight 375g
Dimensions (Length x Diameter) 66 x 70.5mm
Kit Content Front cap
Rear cap
Lenshood
Soft case
Special Features

f/1.4 aperture

Circular diaphram

SDM technology

Weather sealed

"Quick Shift" focusing

Only compattible with SDM enabled cameras

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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