Photoshop actions

  Reviews by: Simon Hickie  

View profile View recent posts View reviews Add Simon Hickie to your Buddy List
Sigma 10-20mm F4-5.6 EX DC HSM

Review Date: Mar 23, 2007 Recommend? yes | Price paid: Not Indicated | Rating: 9 

Pros: Outstanding central sharpness, even wide open! Contrast very good. Focusing very quiet and accurate. Zoom action smooth. Seems to render an image with much more depth than my Nikkor 18-70mm so things can seem more 3D-like. Resists flare well.
Not quite so sharp into the edges, but still better than my 18-70. Some vignetting wide-open, but fairly easily fixable. Lens cap & lens hood do not work well together - need to replace it with one of those new Nikon style centre pinch ones. Some horizon line distortions at the edges.

I was a little sceptical about buying one of these after a bad experience with a Sigma 28-70mm f2.8 EX some years ago. However, I seem to have a good one. It's not perfect - note some of the negative comments above. However, taking the lens as a package, it delivers outstanding value for money. It also has a three year guarantee, unlike Nikon who only offer one year here in the UK.

As with all ultra wides, they have to be used appropriately. By pointing the camera up or down from horizontal you will get converging or diverging verticals. This is normal and not a lens fault. Also, parts of the image at the edges will also appear more 'spread out'. Again this is a normal optical effect with wide-angle lenses and not a feature of this particular lens.

At a hundred pounds less than the Tokina 12-24mm, four hundred pounds less than the 12-24mm Nikkor and an extra couple of mm at the wide end, it seems like an excellent deal. Time will tell though if it the build is up to the mark, but I tend to treat my gear carefully.