8 out of 10 points and recommendedSharp, lightweight, good range, smooth zoom action.loose focus ring.
I got this as part of the D80 kit. The lens is well balance with the body. As indicated in the SLRGear review, the lens is very sharp even at the wide open aperature. CA and Vignetting can be spotted at the edge of the photos but they can be easily fixed in software. When using the trial verion of Capture NX, the CA is automatically removed from the NEF images.reviewed December 24th, 2006 (purchased for $270)
One thing, the focus ring is very loose. I something changed the focus while zooming.
Overall, the image quality is very high and I would recommend this lens.
10 out of 10 points and recommendedSharp, well built, nice bokensoft in macro range at 200mm
This lens is extremely sharp through out the range and built like a tank. It produces much better boken than the Nikor AF 105 micro which I own previously.reviewed December 24th, 2006 (purchased for $1,000)
My copy is soft at 200mm when set to the minimum focus distance.
High recommended if the weight is not an issue.
9 out of 10 points and recommendedGood build quality, smooth zoom and focus ring
The lens is very well built. I compare it with the Nikor 12-24 DX lens when I made the purchase. The Nikor is a bit sharper but the Sigma wins on all the other aspects (distortion, CA control, ...). If Nikon makes a full frame DSLR one day...reviewed December 24th, 2006
I recently updated its chip for the D200 AF-ON issue. The service provided by Gentec Canada was excellence.
One thing, the NEF image files produced by this lens is not 100% compatible with Capture NX. The vignetting control does not work although the lens does not need the correction with APS size censor.
This is my favourite lens and it stays on the camera most of the time. Highly recommended!
10 out of 10 points and recommendedVery well-built, sharp and brightHeavy compared to the Canon equivalent
As the other reviewer already mentioned, the lens is sharp and well-built.reviewed December 24th, 2006
I love its range for architecture when I was using the film camera. With the DSLR crop factor, it becomes a normal zoom lens which I used mainly for family photos.
9 out of 10 points and recommendedlightweight, sharp
This lens is sharp and light. With the DSLR crop factor, it becomes a very usefull portrait lens.reviewed December 24th, 2006 (purchased for $60)
It is not that sharp wide open. But above F2.8, it is my sharpest lens.
Given the low price and weight, there is no reason not to have one in the camera bag. Highly recommended.
10 out of 10 points and recommendedExtremely sharpNone
The lens is extremely sharp by F5.6. At wide open it is on par with the 80-200 F2.8 lens.reviewed January 1st, 2007 (purchased for $800)
When shooting portrait, it produces broken with pentagon shape.
I use it mainly for closeup (ie. flowers) and it produces extremely sharp prints.
10 out of 10 points and recommendedSharp and lightNone
The lens is extremely sharp even at F2.8. The built-in hood is very handly.reviewed January 1st, 2007 (purchased for $500)