Pentax Telephoto 55mm f/1.4 DA* SDM Autofocus Lens for Digital SLR

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SKU: 21790



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$945.00

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The Pentax 55mm f/1.4 DA* SDM Autofocus Lens is a compact and bright short-telephoto lens of the highest order, made exclusively for Pentax digital SLR cameras.  In a stocky housing ready for harsh conditions, you'll get a bright f/1.4 aperture-worlds away from the experience you're used to with more common zooms-that opens up new creative doors to you as a photographer.

This lens was born to shoot between f/1.4 and f/2.8, and comes with a 9-bladed aperture diaphragm which shows up as perfectly round when you stay between f/1.4-2.8.  Shoot dramatic portraits with bright point light sources behind the subject, and you'll be dazzled with lovely diffuse, circular out-of-focus highlights that make everybody look better.  Beyond portraits, this lens works well any time you would use a moderate telephoto focal length.

The focusing system of this lens is SDM only; there is no screw on the rear of the lens barrel to have the AF driven by a body-based motor.  This allows the lens to move incredibly quick, driven by an internal motor and with the Quick-Shift system providing manual override capacity to you any time you want it with no buttons to switch; but you'll need a Pentax body which allows SDM autofocus (all current Pentax bodies support SDM, but the *IST series does not).

Note: Does NOT provide autofocus upon non-SDM-enabled Pentax cameras.

  • Brilliantly-sharp portrait lens which gathers plenty of light
  • Completely-rounded aperture diaphragm from f/1.4-2.8 for beautiful out-of-focus highlights
  • Speedy SDM autofocus motor provides fast, silent response with Quick-Shift full-time manual override
  • Pentax's unique SP water and dirt-repelling coating on both external surfaces
  • Pentax's "Aero Bright" internal lens yields high transmissivity and reduced flare
  • Dust and moisture-resistant housing
  • Essentially equivalent to an 82.5mm f/1.4 lens upon 35mm SLR cameras

(21790)

Pentax Telephoto 55mm f/1.4 DA* SDM Autofocus Lens for Digital SLR

Performance

Focal Length
  • 55mm
  • Comparable 35mm Equivalent on APS-C Format Focal Length: 82.5 mm
Aperture
  • Maximum: f/1.4
  • Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility Pentax Digital (APS-C)
Angle of View 28.6°
Minimum Focus Distance 1.48' / 45 cm
Magnification 0.17x
Maximum Reproduction Ratio 1:6
Optical Design 9 Elements in 8 Groups
Diaphragm Blades 9

Features

Image Stabilization No
Autofocus Yes
Tripod Collar No

Physical

Filter Thread 58 mm
Dimensions (DxL) Approx. 2.8 x 2.6" / 7.11 x 6.60 cm
Weight 13.23 oz / 375 g

Packaging Info

Package Weight 1.45 lb
Box Dimensions (LxWxH) 5.7 x 4.9 x 4.3"
SKU 21790
Barcode # 027075147348
Brand Pentax
Unit Of Measure ea

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