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IQ is excellent. Build quality is very good as with all sigma lenses. Am completely pleased with this product. Product is everthing good that I heard it was. It is priced reasonably well. Have not seen any negitive lens quality.
I wasn't disappointed. I bought this lens for macro work after I saw the photos of a member of my camera club made with the same lens. Photos are sharp & clear.
I feel the 105 lenses work at more flexable distance from the subject, the quality of the immage between a the nikon 105 and the Sigma is nearly identical. Summar, the sigma has a signifant price/performance edge of the Nikon competers. I need a Macro lens for my Nikon D-60 So I looked at the Nikon AF-S VR 60mm, the Nikon 105 AF-S VR lenses and the Sigma 105 macro lense.The sigma is missing some fetures of the Nikkor lenses, however in macro work you are normal using AP mode and manual focus. But difference in price is inportant to me.
However, this could be because the lens "thinks" it is focused and stops the focus movement. Mostly this seems to occur with the lens is extended and the object to focus on requires the lens to retract. I will be sending this one back. After two weeks of use, however, the autofocus was unable to focus on any object consistently. We use it a great deal and have two camera so equipped for our business. The retraction motor seems week and unable to pull the lens back in all the way.
We are, however, pleased with the Signma lens in general. This item was received on March 2nd in good condition. It would sometimes be able to do so and other times it could not. I cannot tell which.
when it came down to it. Picked this Lens up after spending an after noon in a camera shop playing and shooting around. Money and Quality, Pound for Pound the Sigma does the Trick.Its Well Worth the Money.
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