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Pentax Telephoto 55mm f/1.4 DA* SDM Autofocus Lens for Digital SLR
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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
|Package Weight||1.45 lbs|
|Package Dimensions||5.7 x 4.9 x 4.3 in|
|Camera Mount Type||
Maximum: f/1.4 Minimum: f/22
Approx. 2.8 x 2.6″ (7.11 x 6.60 cm)
Pentax Digital (APS-C)
|Maximum Reproduction Ratio||
|Box Dimensions (LxWxH)||
5.7 x 4.9 x 4.3″
13.23 oz (375 g)
|Angle of View||
|Minimum Focus Distance||
1.48′ (45 cm)
55mm Comparable 35mm Equivalent on APS-C Format Focal Length: 82.5 mm