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@ InTheMistWhen the image is resized, the bokeh get oblong. You may wish to repost at the 640 px size to avoid this. The lens...I will order after the first of the year.
Hehe, I refuse to post my images at 640 just for this forum. If they want to scale, ok, but do it both length and width.
Don't worry about quality with this Sigma (with the others, feel free to worry in each possible aspect ) The lens itself is heavier than the Nikon, they did a great design job, too. The focus ring is not moving so easily as the Nikkor's are which I consider as a plus, it helps to focus more precisely.
At least, it gets an individual testing with a new testing device. To me, it seems Sigma has made a lot of efforts to improve the whole package and as far as I see it was worth it. I had some quite okay Sigmas when I shot with Pentax, also the 17-50/2.8 for the D7000 was a proper lens. I can't complain - but the new lens is a different story. No cheap "alternative", just playing on the same or higher level as the originals.Although the color renderings are a bit sharper, clearer I sometimes miss the warmer, maybe a tiny bit less good resolving characteristics of the Nikkor. There is a difference but a good one.