The Sigma 18-250mm f3.5-6.3 DC OS HSM lens incorporates Sigma's original anti-shake compensationfunction, with a 13.8 times zoom ratio. For cameras that have anti-shake function in the camera body, thislens's Hybrid Optical Stabilizer provides not only anti-shake function for the camera body compensation,but also the function to compensate the image shaking in the view finder. Incorporating four Special Low Dispersion glass elementsand three Aspherical lens elements provides excellent image quality throughout the entire zoom range.This lens has a minimum focusing distance of 17.7 inches (45cm) at all focal lengths and a maximummagnification of 1:3.4 reproduction ratio, making it ideal for close-up photography. An inner focusingsystem also eliminates front lens rotation, making it suitable for use with circular polarizing filters and thesupplied petal-type hood. The super multi layer coating helps to reduce the ghost in the backlightphotography.Customer Review: Sigma 18-250mm lens
I have had this a few weeks, I purchased it for its range as I am shooting a friends wedding next month. Thus far I have found its range a tremendous benefit for indoor group events.
Customer Review: It was fun until...
I got my lens last week and I had lots of fun with it, until I noticed the AF started getting buggy. After turning on for a few minutes it would work fine but then I noticed that when I was focused on something far and tried to focus on something closer, the AF would get jammed or something. I had to nudge the focus ring a little bit for my camera to take the picture. I'm sure switching it to manual focus would have worked, but I don't want to use that for the rest of my time with the lens. I tried it on my brother's D80, and still the same problem so I'm sure it wasn't my camera. I decided on returning the lens and I'm deciding on whether I should by the Nikkor 18-200 or the 18-135 and the 35mm f/1.8 af-s. I'm pretty sure I had a bad copy of the lens, but it's because of this I'm going to stick with Nikon lenses from now on. I know Sigma makes good lenses, but I switched from the Sigma 18-200, then went to the 18-250. I'm pretty sure I'm going to grab myself the Nikkor 18-200. Oh I'm an amateur photographer using a D40, and I liked the pictures that were produced. Not super sharp, but sharp enough. Another thing, the lens was pretty heavy. At first I liked the way my tiny little D40 was kinda heavy, but as I write this review, my right wrist is in pain. If you have a D40,D40x,D60, or even the D5000 and you have this lens, I would recommend getting a battery pack to go with it to even out the weight. I'm sure I would have kept this lens if I didn't have that problem, but now it's going to be Nikon lenses. Good luck to you if you plan on purchasing this lens. Hopefully you don't get a bad copy like me.
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