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Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Sony Alpha Review
Sigma 17-70mm F2.8-4 DC MACRO OS HSM C

Main Features

  • 17-70mm Focal Range
  • F2.8 - F4.0 Max Aperture
  • Image Stabilization
  • Filter Thread: 72mm
  • Max Format: APS-C / DX
  • Sony Alpha Mount
  • Weight: 465g.
  • Diameter: 79mm
  • Length: 82mm
  • Min Focus Distance:0.22m
  • Max Magnification:0.36x
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Sigma 17-70mm F2.8-4 DC OS HSM C Overview
Sigma 17-70mm F2.8-4 DC OS HSM C is an Auto Focus (AF) Standard Zoom lens with APS-C / DX max sensor coverage and it is designed to be used with Sony Alpha mount cameras.

Lens Mount

Sigma 17-70mm F2.8-4 DC OS HSM C is compatible with cameras that have Sony Alpha lens mount.Some of the latest released cameras with Sony Alpha lens mount are Sony A68, Sony A77 II and Sony A58.

Sensor Coverage

Max sensor coverage of Sigma 17-70mm F2.8-4 DC OS HSM C is APS-C / DX.

Focal Range

Sigma 17-70mm F2.8-4 DC OS HSM C has a focal range of 17-70mm and 4.1X zoom ratio. When mounted on a APS-C / DX format camera, it provides an 35mm (FF) equivalent of 25.5 - 105mm.

Optical Image Stabilization

Sigma 17-70mm F2.8-4 DC OS HSM C features an optical image stabilization system which helps to reduce the blur that occurs due to shaking during hand-held shooting.

Zoom Method

Rotary (extending)

Aperture

Sigma 17-70mm F2.8-4 DC OS HSM C has a max aperture of f2.8 at 17mm and max aperture of f4 at 70mm .
Pros and Cons of Sigma 17-70mm F2.8-4 DC MACRO OS HSM C

PROs
Image Stabilization
Built-in Autofocus
Hood supplied
Fast and Bright at Wide end
Fast and Bright at Tele end

CONs
Lens Extents while focusing
Variable Aperture
Sigma 17-70mm F2.8-4 DC OS HSM C Detailed Specifications

General
Brand Sigma
Lens Type Zoom
Lens Type Standard Zoom
Lens Mount Sony Alpha
Max Format APS-C / DX
Focal Range 17-70mm
Image Stabilization Yes
Colour Unknown
Zoom Method Rotary (extending)
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 4.1X
APERTURE
Max Aperture F2.8 - F4.0
Min Aperture F22.0
Aperture Ring No
Diaphragm Blades 7
Optics
Optical Elements 16
Optical Groups 14
Special Elements 2 FLD ("F" Low Dispersion) glass elements, 1 SLD (Special Low Dispersion) glass element, 3 aspherical glass lenses including double sided aspherical lens

FOCUSING
Min Focus Distance 0.22m
Max Magnification 0.36X
Autofocus Yes
AF Motor Type Micro-type ultrasonic
Full Time Manual No
Focus Method Internal
Distance Scale Yes
PHYSICAL SPECS
Weight 465g
Diameter 79mm
Length 82mm
Materials Plastic barrel, metal mount
Weather Sealing Unknown
Filter Thread 72mm
Filter Notes Does not rotate on focusing
Hood Supplied Yes
Hood Code LH780-03
Tripod Collar No
Sigma 17-70mm F2.8-4 DC MACRO OS HSM C Alternatives in Sony Alpha Mount
Model Coverage Weight Focusing Street Price
Sony DT 16-80mm F3.5-4.5 ZA Carl Zeiss Vario-Sonnar T Lens Sony DT 16-80mm F3.5-4.5 ZA Carl Zeiss Vario-Sonnar T
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APS-C / DX 445gr AF Amazon B&H Photo
Sony DT 18-70mm F3.5-5.6 Lens Sony DT 18-70mm F3.5-5.6
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APS-C / DX 235gr AF Amazon B&H Photo
Sigma 17-70mm F2.8-4 DC Macro OS HSM Lens Sigma 17-70mm F2.8-4 DC Macro OS HSM
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APS-C / DX 520gr AF Amazon B&H Photo
Frequently Asked Questions about Sigma 17-70mm F2.8-4 DC MACRO OS HSM C
is the Sigma 17-70mm F2.8-4 DC MACRO OS HSM C a Weather Sealed lens?
What is the Minimum Focusing Distance of Sigma 17-70mm F2.8-4 DC MACRO OS HSM C
is the Sigma 17-70mm F2.8-4 DC MACRO OS HSM C an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 17-70mm F2.8-4 DC MACRO OS HSM C
Does Sigma 17-70mm F2.8-4 DC MACRO OS HSM C have Image Stabilization?
Does Sigma 17-70mm F2.8-4 DC MACRO OS HSM C have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 17-70mm F2.8-4 DC MACRO OS HSM C
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