Tools JX Error: Definition with ID 78 does not exist.Tools JX Error: Definition with ID 92 does not exist.

Review Sigma 12-24 mm

0
0
0
s2smodern
Sigma 12-24 mm 4.5-5.6 ll DG HSM & Canon 60D (C APS-C)

In the late summer of 2011, Sigma released the Sigma 12-24mm 4.5-5.6 II DG HSM. This is the successor to the Sigma 12-24mm 4.5-5.6 EX DG Asf. The new version is bigger, has more glass elements and would be better optical-wise than the first version. Both the Sigma 12-24 mm lenses are unique, because they are suitable for APS-C and full frame cameras.

sigma 12-24 mm review

The Sigma 12-24 mm has much competition in case you put this lens on a APS-C camera. Think about the Tokina 12-24 mm 4.0 or the Canon 10-22 mm 3.5-4.5. These are lighter, more compact and cheaper. However, the Sigma does have a big advantage. In case you change, like so many photographers do, from the APS-C format to the full frame, is it not necessary to buy another wide angle zoom.

Tools JX Error: Definition with ID 78 does not exist.

Review sigma 12-24 mm
Field of viewSigma 12-24 mm @12 mm
Sigma lens review
FOV Sigma 12-24 @24 mm

Construction and autofocus

The Sigma 12-24 mm lens is made of a high quality type of plastic and the fitting is made of metal. The zoom ring is without play, but makes a squeaky sound when turning. The focal ring has just the right friction and turns without play. Attached to the lens is a kind of flower shaped lens hood, which can be extended using an APS-C camera. Assembling a filter on the front is not possible.

The autofocus is done by means of a very quiet HSM drive. Focusing with a Canon 60 D from 15 meters to 1.5 meters lasts 0.15 seconds with a focal length of 24 mm. That is a very short time. The camera does not hunt at low light despite the low luminosity.



Sigma 12-24 bouw

Vignetting

The vignetting of the Sigma 12-24 mm in stops is on the high side at full aperture at all focal lengths. This lens error can be controlled well with the right software.

vignetting-Sigma-12-24

Distortion Sigma 12-24 mm

The distortion measured in Sigma 12-24 mm jpg files, expressed as a percentage, is large at a focal length of 12 mm, namely -2.2%. At a focal length of 18 mm and 24 mm, the distortion is much lower. Distortion can be controlled with the appropriate software.

distortion-sigma-12-24

Bokeh

The blurry rings all get a circle, making the imagae 'busy'. The bokeh of the Sigma 12-24 mm lens is not so pretty. Due to the small sensor and the small initial aperture, one cannot play with the depth of field.

Sigma aps-c 12-24 mm bokeh 1
Sigma aps-c 12-24 mm bokeh 2
Sigma 12-24 mm @ f/5.6, 24 mm
Sigma aps-c 12-24 mm bokeh 3
@f/5.6, 24 mm
Sigma aps-c 12-24 mm bokeh 4
Sigma 12-24 mm @f/8.0, 24 mm
Sigma aps-c 12-24 mm bokeh 5
@f/8.0, 24 mm

Flare

The lens is fairly insensitive to flare at backlight. Ghosting does appear somewhat.

Sigma aps-c 12-24 mm flare

Resolution Sigma 12-24 mm

 

The resolution, expressed in line pairs/sensor height, reaches high levels at the center at 12 mm, 18 mm and 24 mm immediately at full aperture. This Sigma is not a very fast lens but can be used at full aperture immediately and by stopping down, the image does not get sharper. At 24 mm, the resolution then decreases. It is best to use the aperture values f/4.5 – f/5.6 unless more depth of field is needed.

Click on the image for more.

 

resolutie-sigma-12-24

We came across a big difference in corner resolution at the test of this Sigma on the full frame camera Canon 5D MK2. The right corner below is far less sharp than the other corners at that combination. That difference in depth is much smaller when using a Canon 60D, which is equipped with an APS-C sensor.

Sigma 12-24 mm scherpte 12 mm
@f/9.0, 12 mm
Sigma 12-24 mm scherpte 12 mm LO
Sigma 12-24 mm @ f/9.0, 12 mm, lefthand side
Sigma 12-24 mm scherpte 12 mm RO
@f/9.0, 12 mm, righthand side

Chromatic aberration Sigma 12-24 mm

At a focal length of 18 mm, the chromatic aberraion of the Sigma 12-24 mm is high and will have to be controlled by software.

Click on the image for more.

CA-sigma-12-24

Conclusion

Sigma 12-24 mm  bouw  Tools JX Error: Definition with ID 92 does not exist.

Pros

  • High resolution, also with full aperture
  • Minor glare at backlight
  • Very fast AF
  • Suitable for full frame sensor and APS-C format sensor
  • Good workmanship

Cons

  • Much distortion at 12 mm
  • Much vignetting at full aperture
  • Dim
  • Large, heavy and pricy compared to lenses that are only suitable for APS-C sensor format

The Sigma 12-24mm f/4.5-5.6 II DG HSM is fairly unique due to the suitability for both the full frame and APS-C format combined with the wide viewing angle. When using an APS-C sensor, lens errors such as distortion, vignetting and CA are lower than when using a full frame sensor. The difference in corner resolution is much smaller too. However, the bokeh is much less beautiful at a small sensor. The Sigma 12-24 mm tested here is not very fast and the corners are nog very sharp. Compared to wide-angle zoom lenses that are only suitable for an APS-C sensor, the Sigma 12-24 mm f/4.5-5.6 II DG HSM is on the pricy side despite the fast autofocus and good workmanship.

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!

0
0
0
s2smodern

Comments (2)

  1. Jason

I don't see why you guys continually test this lens on crop-sensor cameras and then tell every one to "get the Nikon" or "get the Canon" while this lens was made for use specifically on a full-frame sensor camera, where the other ultra-wide zooms...

I don't see why you guys continually test this lens on crop-sensor cameras and then tell every one to "get the Nikon" or "get the Canon" while this lens was made for use specifically on a full-frame sensor camera, where the other ultra-wide zooms will simply not work wider than 13-14mm. Come on...

Read More
 
  1. Bob    Jason

Hi Jason,<br />Thanks for your comment.<br />It's a bit of an old test to comment on, but we did test on both formats. Fact is though that the majority of our readers use a crop-sensor camera. On a crop, this is still a very wide angle lens. And...

Hi Jason,<br />Thanks for your comment.<br />It's a bit of an old test to comment on, but we did test on both formats. Fact is though that the majority of our readers use a crop-sensor camera. On a crop, this is still a very wide angle lens. And since many like to buy future proof optics, in case they want to change to full frame, we feel it does make sense to test. <br />We try to avoid telling our readers to 'get' a specific brand.<br />Best regards,<br />Bob

Read More
 

Leave your comments

Posting comment as a guest.
Attachments (0 / 3)
Share Your Location