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Sigma DC 17-70 mm F 2.8-4 Macro OS HSM Lens

Pictures

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM lens

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM lens

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM lens

MTF-charts

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM MTF Chart

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM MTF Chart

Optical design

Sigma DC 17-70 mm F 2.8-4 Macro OS HSM optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S, Sony A / Minolta A, Nikon F (FX, DX), Pentax K, Sigma SA

First year of production: 2010

Optical design: 17 elements in 13 groups (3 AS, 1 ELD)

Features: Ultra-Sonic Motor, Optical stabilisation
User reviews (0)

Photos (8)

Tests (0)

Owners (7)

Views (5383)

Average price: $570

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
17mm - 70mmf/2.8 - f/4.0f/2270.2272535/18,989/3,5

Additional information:

The Sigma 17-70 mm F 2.8-4 DC Macro OS HSM

  • Diagonal angle of view 72.4° - 20.2° (1.7х Foveon)
  • Equivalent focal length 27-112 mm on APS-C
  • Max. magnification 1:2.7
  • Minimum working distance 47 mm
  • LH780-04 hood is  included with the lens.
  • Diameter 79 mm
  • Price - $ 690 at the American website.

The Sigma 17-70mm F2.8-4 DC Macro OS HSM is a standard fast  zoom lens with a large aperture and switchable system of optical image stabilization which is designed for digital SLR cameras with a crop factor not less than1.5. The 4-stop optical stabilizer is compatible with the Sony and Pentax bayonet mounts only on Sigma lenses even if the lens body has an Anti-Shake function .  In practice there are no more than 3 f/ stops of optical image stabilization  instead of 4 claimed by Sigma .

The optical scheme of the Sigma 17-70 mm F 2.8-4 DC Macro OS HSM includes three aspherical elements (one hybrid and two molded) and one ELD element for correction of all types of aberrations. The super multi-coating of optic elements reduces flare and halation, and increases contrast.

Hyper Sonic Motor provides quiet and high-speed autofocusing. Internal system of focusing eliminates the front lens rotation, which makes it possible to use a petal hood and polarized filters. The size of the lens  changes while zooming. The Sigma 17-70 mm F 2.8-4 DC Macro OS HSM is equipped with a zoom lock mechanism for preventing undesired barrel extension. The distance scale is marked on the lens barrel.

In 2012 a new version of the lens with the same name but different optical scheme and exterior was announced.

Focal length

17

24

28

35

43

50

60

70

f/

2.8

3.2

3.5

3.5

3.5

4.0

4.0

4.0


Links to online resources:
PDF Files:
Posted by: dv   Date of publication: 27.10.2010



Photos taken with this lens Sigma DC 17-70 mm F 2.8-4 Macro OS HSM:


La galleria Sabbioneta, Mantua, Italy
Autor: Radovan
5 0 1249

iso200, f4, 1/200
Autor: se5555
5 0 1161

Setting sun before a storm
Autor: Radovan
5 0 1416

Margin
Autor: se5555
4 0 1324

Mechanical quality4.676
Optical quality4.676
Usability4.176
Pricing / Value4.176
Bokeh4.297
Overall lens rating
4.39

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