Customer Review

28 of 28 people found the following review helpful
5.0 out of 5 stars so far, so good!, September 4, 2009
This review is from: Sigma 18-250mm f/3.5-6.3 DC OS HSM IF Lens for Nikon Digital SLR Cameras (Electronics)
Just got the Sigma 18-250mm and am happy with it so far. Tried a variety of indoor/outdoor shots, and all are very sharp. See no difference in sharpness compared to my Nikon lenses. Focuses very fast, feels very solid. Was worried it would be heavy (it is heavier than the Tamron 18-270 and Nikon 18-200, according to specs), but it barely seems heavier than the 18-105 lens that came with my D90. Not much bigger, either. I tried it on my D60, and with that smaller camera, the lens made the whole camera feel unbalanced (lens-heavy). But with the D90, it feels balanced. Notice very slight zoom creep in the 80-135 range so far, but no big deal. Hope I will still be happy with it after my upcoming travels.

Decided on this lens (vs. Tamron 18-270 or Nikon 18-200) because of price, and also because the Sigma has less distortion at 18mm than the others. So far it seems like a great deal, especially given its price relative to the Nikon.

If you have a D40 or D60, besides the unbalance issue mentioned above, be aware that if you use this lens with the built-in flash with a focal length of 18 to about 22mm, the lens will cast a weird shadow in your images. The D90 -- to my surprise -- does this too, though it is not nearly as bad and could be cropped (at 22mm it is very slight). This same problem would happen with the Tamron and Nikon with the D40/60, but not sure about the D90. The Nikon is about .2 inches shorter than the Sigma, and I bet this makes a difference.) Anyway, chances are, you will not be using this lens at 18mm with the built-in flash very often. If you use an external flash, then there will be no shadow.

Do research, and you'll find that the Nikon, Sigma, and Tamron all have their strong points. For me, the distortion of the Nikon and its much higher price, as well as some negative reviews about the focusing of the Tamron, made me choose the Sigma.
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Showing 1-1 of 1 posts in this discussion
Initial post: Dec 4, 2012 8:55:40 AM PST
Hello A. Rubin,
The weird shadow you mentioned in your review could be fixed by removing the Lenses Hood that came with your lenses.
Good luck.
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A. Rubin
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Location: Pennsylvania

Top Reviewer Ranking: 111,099