Review Sigma 17-70 mm 2.8-4.0 DC Macro OS HSM (C APS-C)

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APS-C Sigma 17-70 mm productfoto  mmIn December 2009, the renewed Sigma 17-70 mm OS, fully named Sigma 17-70 mm 2.8-4.0 DC Macro HSM, was released. The new one is slightly faster (f/2.8-4) and is, equally important, equipped with image stabilization. A lens with a focal length of 17-70 mm is much more universal than a lens that does not go further than 50 mm in the outer zoom position. In portrait photography, 70 mm is in many cases a very convenient focal length. Interestingly, the Sigma 17-70 mm OS is the only lens with that zoom range at the moment. In 2013, this lens has been replaced by the Sigma 17-70 mm 2.8-4.0 DC Macro HSM Contemporary.

APS-C Sigma 17-70 mm hoek 17  mm
FOV Sigma 17-70 mm OS @17 mm
APS-C Sigma 17-70 mm hoek 70  mm
FOV Sigma 17-70 mm OS @ 70 mm
The Sigma 17-70 mm OS has a 4.1x zoomrange and a field of view corresponding to the field of view of a 27-112 mm lens on a camera with a full frame sensor

Construction and autofocus

 

As we are used to of Sigma, the zoom ring turns without play and with just the right friction. The focus ring has a very short stroke and runs very lightly. On the lens, it says "Macro." The subject has then a size of about 5 to 7.5 cm, but is located a few centimeters from the front lens. That does not work conveniently in practice, because of shadowing. The drive of the auto focus is done with an HSM drive. Focusing is very fast and nearly silent with a Canon 600D; from 15 meters to 1.5 meters in just 0.18 seconds. Even in low light, the AF is accurate.

Specifications
Sigma 17-70 mm f/2.8-4 DC Macro OS HSM
Image Stabilization:-
lenses/ groups:-
length x diameter:- / -
filter size:-
Weight:-
Lens hood:-

Image stabilization

 

The effectiveness of the built-in image stabilization is measured at a focal length of 70 mm. The effectiveness is about 3 stops.

aps-c-sigma-17-70-os-bij-70-mm

Vignetting

 

The vignetting expressed in stops is just too high at f/2.8 and f/4.0. It is remarkable that this does not apply to a focal length of 28 mm while it does for the other focal lengths. Vignetting can be controlled well with some programs.

aps-c-sigma-17-70-mm-lichtafval-op-canon

Distortion

 

The distortion, expressed as a percentage, is high at all measured focal lengths except for 28 mm. Distortion can be controlled with software.

aps-c-sigma-17-70-mm-vertekening-op-canon

Flare

 

The Sigma 17-70 mm is sensitive to both flare and ghosting in strong backlight. In practice, you should take this into account.

Sigma 17-70 mm praktijk  overstraling

Resolution

 

The resolution, expressed in LW/PH, reaches high to very high values in the center. At a focal length of 17 mm, the difference with the angles is large. At the other focal lengths, the resolution is also remarkably well in the corners. The resolution of the Sigma is higher at all focal lengths except outer wide angle than the resolution of the Canon 17-85 mm 4-5.6 and the Canon 15-85 mm 3.5-5.6. The Sigma is also a bit more luminous.

Click on the image to see all the Imatest data.

APS-C-Sigma-17-70-mm-resolutie

Chromatic aberration

 

The chromatic aberration is high at 17 mm and at the other focal lengths remarkably low. Chromatic aberration can be controlled with the right software.

Click on the image to see all the Imatest data.

miniCA

Conclusion Sigma 17-70 mm 2.8-4.0 DC Macro OS review

APS-C Sigma 17-70 mm productfoto  mm

Look in our list of all reviewed lenses or the lenses we have reviewed with a Canon mount in order to compare the performance of this lens with other lenses.
ECWYSIWYG score: This table shows the performance of this lens if you store the files in the camera as jpg, where you have all available in-camera lens corrections applied. This score gives you for this lens/test camera combination: "What you see is what you get".
70
112
7.4
7.2
9.1
8.1
6.1
17
28
6.7
6.7
7.8
6.7
5.6
23
35
7.7
7.1
8.5
7.9
9.0
53
85
7.5
7.3
8.8
7.9
6.1
Overall
Overall
7.3
7.1
8.5
7.1
6.1

Pros

  • Very good resolution in the center at all focal lengths for a lens in this class
  • Good to very good resolution in the corners, except for 17 mm
  • Practical zoom range
  • Very fast autofocus
  • Solid touch
  • Good price to quality ratio

Cons

  • Very poor sharpness at 17 mm in the corners
  • High distortion at 17 mm
  • Sensitive to backlight
  • Chromatic aberration at 17 mm on the high side
The Sigma 17-70 mm 2.8-4.0 DC Macro OS HSM has a much more interesting zoom range than the Canon 18-55 mm kit lens. Those extra millimeters on the telephoto side allows this lens to work as a portrait lens. The resolution is, except for the wide angle, higher than the resolution of the Canon 17-85 mm 4-5.6 and the Canon 15-85 3.5-5.6 mm. The performances in terms of distortion, susceptibility to ghosting and vignetting are very average but the lens is more luminous than its competitors. Despite the slightly higher purchase price, the Sigma 17-70 mm OS offers value for its money because of the high resolution.

 

Anno Huidekoper
Author: Anno HuidekoperWebsite: http://www.annohuidekoper.nl/
Als freelance fotograaf deel ik graag mijn kennis. Dat doe ik onder andere in de vorm van bijdragen schrijven voor CameraStuffReview. Fotograferen is voor mij meer dan alleen kijken. Het is de zoektocht naar het leven in het beeld. Wat zorgt voor spanning in de foto waardoor je er naar blijft kijken? Wil je meer van mijn werk zien of wil je meedoen aan een fotoweek, fotocursus of fotoworkshop? Bezoek mijn website!

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