Sigma C 17-70mm F/2.8-4 DC Macro HSM Lens
For Pentax K Mount
The Sigma C 17-70mm F/2.8-4 DC Macro HSM is a wide to short telephoto zoom designed for cameras with a APS-C (1.5X) sensor. This bright variable-aperture zoom covers a 17mm to 70mm focal-range. It provides the same field of view as a 25.5-105mm lens on a Full-Frame camera.
This zoom can focus down to 22cm from the imaging plane which gives it a maximum magnification of 0.24X. The lens offers a Quick-Shift AF system which lets the user simply rotate the focus-ring to focus manually. A Super-Sonic motor inside the lens delivers very fast and relatively quiet AF.
This version has a Pentax K lens mount. Follow this link for all current compatible digital cameras: Pentax K mount cameras with APS-C (1.5X) sensors. Sigma also made this lens available for Sony A mounts.
Sigma C 17-70mm F/2.8-4 DC Macro HSM Specifications
|Brand||Sigma||Model||C 17-70mm F/2.8-4 DC Macro HSM|
|Focal Range||17 - 70mm||View Angle||80 - 23°|
|Max Aperture||F/2.8 - 4||Min Aperture||F/22|
|Filter Size||72mm||Aperture Blades||7|
|Size (D x L)||79 x 82mm||Weight||465g|
|Tilt||N / A||Shift||N / A|
|Zoom Drive||Mechanic||Focus Drive||AF with Quick-Shift|
|Zoom Mechanism||External||Focus Mechanism||External|
|Hood||Bayonet||Focus Motor||Super Sonic|
Similar Lenses For Pentax K Mount
Here are the newest lenses matching or exceeding major specifications of the Sigma C 17-70mm F/2.8-4 DC Macro HSM. They cover the same focal-range with a similar aperture and are available for the same lens mount and imaging circle coverage.
Pentax HD DA 16-85mm F/3.5-5.6 ED DC WR
Sigma C 18-300mm F/3.5-6.3 DC Macro OS HSM
Sigma C 18-200mm F/3.5-6.3 DC Macro OS HSM
Pentax DA 18-270mm F/3.5-6.3 ED SDM
Sigma 18-250mm F/3.5-6.3 DC OS HSM Macro
Sigma 18-200mm F/3.5-5.6 DC OS HSM II
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Sigma 17-70mm F/2.8-4 Facts
|17-70mm Focal-Range||F/2.8-4 Max Aperture|
|72mm Filter Thread||AF with Quick-Shift|
|Pentax K Mount||1.5 Max Crop-Factor|
|465g Lens Weight||79 x 82mm (D x L)|
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