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Sigma 17-50 mm F2.8 EX DC HSM Pentax

Sigma 17-50 mm F2.8 EX DC HSM Pentax - Lens
Lens - filter diameter: 77 mm
Code:  OT358b2 Product Number:  SI 58C961
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Sigma 17-50 mm F2.8 EX DC HSM Pentax Discontinued

Sigma 17-50 mm F2.8 EX DC HSM Pentax

Wide lens design, the advantages will use for indoor and outdoor photography. It was designed for use with digital SLR cameras with APS-C sensor or less. Its advantage is the high F2.8 aperture throughout the zoom range and a quick and accurate ultrasound (HSM) focus. The lens uses modern glass FLD (instead of fluorite), forming glass elements and one hybrid aspherical lens. Thus achieves incredibly sharp images with excellent contrast and excellent correction of aberrations. The surface layer SML then reduces glare and shadows, so the result was absolutely perfect.

key features

  • stabilized lens with large maximum aperture of f / 2.8
  • FLD glass elements are equivalent fluorite lighter and provides excellent performance
  • suitable for travel, landscapes, festive events, portraits and more ...
  • Sonic Motor (HSM) for quick and accurate focusing

Additional information:
Construction: 17 lenses in 13 groups
Field of View: 72.4 ° - 27.9 °
Maximum magnification of 1: 5.0
Number of blades: 7
Dimensions: 83.5 × 91.8 mm (diameter x length)
Weight: 565 g

1) When used with cameras mounted sensor larger than the APS-C appears vignetting.
2) Focus HSM is only available if it supports camera itself.

Pentax Done!
645D, 645Z, K-3, K-3 II, K-30, K-5, K-5 II, K-5 IIs, K-50, K-500, K-70, K-P, K-S1, K-S2 Done!
Pentax K Done!
For chip
APS-C Done!
Min. focal length
17 mm Done!
Max. focal length
50 mm Done!
Max. aperture at min. focal length
2.8 Done!
Max. aperture at max. focal length
2.8 Done!
Filter diameter
77 mm Done!
Focus technology
HSM Done!
77 mm Done!
565 g (565 g) Done!
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