Sigma DC Macro (OS) HSM 17-70mm f/2.8-4 Standard Lens for Pentax - Black

Sigma
Product #:
SGL884109
Manufacturer #:
884109
UPC:
085126884611

- Aperture Range: f/2.8-22 
- Hyper Sonic AF Motor 
- Optical Stabilizer 
- Macro Capabilities 
- Compact and Lightweight TSC Construction 
- FLD, SLD, and Aspherical Lens Elements 
- Super Multi-Layer Coating 
- Compatible with Sigma USB Dock

Lens Filter Size:
72mm
Lens Filter Size:
The size of the filter that fits the lens.
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Lens Type:
Zoom Lens
Lens Type:
This is the type of lens.
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Overview

The 17-70mm F2.8-4 DC Macro HSM OS is the first lens in the Contemporary category of Sigma’s Global Vision. The Sigma 17-70mm F2.8-4 was designed to be the ideal all-purpose lens for APS-C sized sensors. With a great focal length and macro capability, the 17-70mm F2.8-4 is also equipped with a Hyper Sonic Motor (HSM) and an Optical Stabilizer (OS) for superior image quality. The HSM ensures quiet, accurate, and fast autofocusing while the OS compensates for camera shake when shooting by hand. The construction of the 17-70mm includes new TSC material (Thermally Stable Composite), which allows for increased durability as well a reduction in size by 30% compared to conventional models. Two FLD glass elements, which have performance equal to fluorite, are incorporated with one SLD element to reduce color aberration at the highest degree. The 17-70mm F2.8-4 Macro DC HSM OS is compatible with the Sigma USB dock for an increased level of customization. The perfect all-purpose travel lens, the 17-70mm F2.8 Macro DC HSM OS is a must have for any camera bag.

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Specifications

Brand
Sigma - Sigma Sigma - Logo
Detailed Specifications
Image Stabilization: Yes
Image Stabilization:
This is a family of techniques used to reduce blurring associated with the motion of a camera during exposure. Image stabilization helps in low light situations using slower shutter speeds.

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Physical Specifications
Dimensions: Approx. 3.11 x 3.23" (79 x 82 mm)
Dimensions:
The measurements of an object.

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Weight: 16.40 oz (465 g)
Weight:
The physical weight of the item without packaging.

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Color: Black
Color:
The color of the item.

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Brand
Brand: Sigma
Lens
Focal Length: 17 - 70 mm Comparable APS-C Focal Length: 25.5 - 105 mm
Focal Length:
The distance between the film and the optical center of the lens when the lens is focused on infinity.

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Lens Specs
Lens Min. Focus Distance: 8.66" (22 cm)
Lens Min. Focus Distance:
The shortest distance that a lens can focus.

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Lens Filter Size: 72mm
Lens Filter Size:
The size of the filter that fits the lens.

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Minimum Aperture: f22
Minimum Aperture:
How wide a lens can be opened.

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Lens Magnification Factor: 1:2.9
Lens Magnification Factor:
This is the magnifying factor of a lens. Macro lenses will often be described by their “magnification factor”. A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject.

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Elements / Groups: 16 Elements in 14 Groups
Elements / Groups:
The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs.

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Lens Hood: Petal-Type
Lens Hood:
This is the type of lens hood.

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Lens Type: Zoom Lens
Lens Type:
This is the type of lens.

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Angle of View (diagonal): 79.7-22.9
Angle of View (diagonal):
Area of a scene that a lens covers or sees. Determined by the focal length of the lens

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Maximum Aperture: f/2.8 - 4
Maximum Aperture:
How wide a lens can be opened.

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Mount Type: Pentax K
Mount Type:
This is the mount type for the lens to attach to the camera body.

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In The Box

- Sigma 17-70mm f/2.8-4 OS Macro HSM Lens for Pentax
- Petal-Type Lens Hood 
- Front Lens Cap 
- Rear Lens Cap

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