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  • Sigma 18-50mm f/2.8-4.5 SLD Aspherical DC Optical Stabilized (OS) Lens with Hyper Sonic Motor (HSM) for Canon Digital SLR Cameras
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Sigma 18-50mm f/2.8-4.5 SLD Aspherical DC Optical Stabilized (OS) Lens with Hyper Sonic Motor (HSM) for Canon Digital SLR Cameras

by Sigma
| 19 answered questions

Available from these sellers.
Canon Digital SLR Cameras
  • Lens Construction - 16 Elements in 12 Groups
  • Angle of View - 69.3 - 27.9 degrees
  • Number of Diaphragm Blades - 7
  • Minimum Aperture - F22
  • Minimum Focusing Distance - 30cm/11.8 in.
1 used from $379.00 1 refurbished from $449.99

Technical Details

Style: Canon Digital SLR Cameras
  • Brand Name: Sigma
  • Model: 18-50mm OS HSM Canon
  • Lens Type: Zoom lens
  • Minimum focal length: 18 millimeters
  • Maximum focal length: 50 millimeters
  See more technical details

Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras

Product Details

Style: Canon Digital SLR Cameras
  • Product Dimensions: 89 x 74 x 3.7 inches ; 13.9 ounces
  • Shipping Weight: 7 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B002330FJ8
  • Item model number: 18-50mm OS HSM Canon
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (107 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: October 2, 2001

Product Description

Style: Canon Digital SLR Cameras

An upgrade to its predecessor, the 18-50mm F2.8-4.5 DC OS HSM is a lens dedicated to digital SLR cameras with APS-C size image sensors offering a large aperture and Sigma’s Optical Stabilization. Once again, Sigma has also engineered the built-in OS function, an anti-shake system, for Sony and Pentax mount allowing the photographer to see a stabilized image in the viewfinder. The combination of the large aperture of F2.8 and anti-shake function makes capturing exceptional photos in low light achievable, and the wide angle is well suited for indoor photography. Two SLD (Special Low Dispersion) glass elements and three Aspherical lenses provide excellent correction for all types of aberrations. The Super Multi-Layer Coating reduces flare and ghosting. Designed with inner focusing and inner zooming systems, high image quality is assured throughout the entire zoom range. The overall length of the lens does not change during focusing and zooming ensuring convenient handling. This lens has a minimum focusing distance of 11.8 inches (30cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.1. The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed auto focus.

Customer Questions & Answers

Customer Reviews

The colors were true and images sharp as a tack.
Jerry Massey
Sigmas build quality is great and feels like it will last me a good while.
pino
I would definitely recommend this lens to a friend.
JamesMontour

Most Helpful Customer Reviews

70 of 71 people found the following review helpful By John W. Griggs on April 7, 2010
Style Name: Nikon Digital SLR Cameras Verified Purchase
I'm using this lens on a Nikon D200. After destroying my 18-200mm Nikon VR I wanted a cheap "walkabout lens" that I could risk destroying as I do a lot of industrial shooting where it's easy to whack a lens.

I bought this lens despite some less than glowing reviews. I really liked the self-contained design where nothing changes length when zooming or focusing. I also liked the idea of it being f/2.8 at the wide end.

This lens has a boatload of chromatic aberration at wider settings which is it's chief drawback. I use Lightroom 2.6 and it's perfectly correctable which enhances its wide end sharpness as well. This lens is sharp enough at all zooms stopped down just a little. It's really quite a surprise. I wouldn't try to make billboards with it, but it should print up to 12x18 with a little care in shooting. The optical stabilization on mine is really very good and I'm impressed with how far it allows me to push the shutter speed on still life shots.

Like most inexpensive wide lenses, it shows corner softness and vignetting at wide settings but this can actually be used to push the viewer into the center of the shot, or vignetting can be corrected in post. Wide open at 50mm (it's full zoom limit) it's soft all over but sharpens up by even F/5.6 on my copy. Not bad since most lenses in this price range are already F/5.6 at this zoom and have to be closed further to get any sharpness at all.

I have a number of Nikon and Sigma lenses and this one sits on my camera almost all the time. I've grown to know and trust it in just the short time I've had it. The autofocus has been very good in low light -- contrary to some reviews I've read elsewhere -- and I have to say this lens is easy to like once you understand its limitations.

For the very low price this lens sells for and the features it has (non-rotating filter mount, internal zoom and focus) it's a very attractive lens for a shooter like myself.
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49 of 53 people found the following review helpful By N. J. cruz on August 23, 2009
Style Name: Nikon Digital SLR Cameras Verified Purchase
I'm an amateur photographer, whose pictures are taken indoors, with no flash. I could not afford higuer-end class just yet, so I opted for this lens, knowing that 18mm, it gives you f2.8. That is pretty awesome. IT works fantastic and smooth. From the beginning, my photos came out pretty sharp, thanks in part to the Optical Stabilization offered, something that other brands cannot offer for that price.

Strongly recommend this lens for your everyday photos. Outdoors and indoors. It is not heavy, it is fast, sharp, and practical.
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19 of 20 people found the following review helpful By Patrick Offord on November 29, 2009
Style Name: Canon Digital SLR Cameras Verified Purchase
As a walk-around lens I really did try to think of the best overall lens that I would want. I recently purchased another Canon body (450D) and instead of getting another 18-55 canon kit lens I opted instead to purchase body only this time. I then did my homework on which lens I thought would be best. Looking at the 18-100+ lenses, the 18-200+ lenses, and the typical overpriced L lenses really put things into perspective for me. I love the range of the kit lenses but REALLy wanted a better quality piece of glass, silent AF, and NO lens extension while zooming. This lens fit the bill perfectly! The fact that Sigma not only made the ultimate kit lens upgrade, but also included the petal hood as well for $300 really made me think about my next purchase and Canon.

Canon wants too much money for their lenses and unless you pay the high price for an L lens you don't even get a lens hood! ENOUGH ALREADY! I am sold on Sigma quality and will continue to support them for my future lens purchases. I have now shot over 3,000+ images with this lens and I have only tossed around 15 total.
[...]
Extremely Sharp, accurate color, little to no chromatic issues, fast, and sturdy. Buy this lens, you wont regret it!
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28 of 33 people found the following review helpful By Jerry Massey on July 24, 2009
Style Name: Canon Digital SLR Cameras Verified Purchase
Test photos made with this lens on a Canon XSI were beautiful.
The photos showed no chromatic abberation or edge distortion.
The colors were true and images sharp as a tack. Depth of field was excellent due to the large aperature.
Large blow up of text revels sharp edges. I would recommend this lens to anyone who likes good quality and price value.
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14 of 16 people found the following review helpful By A. F. Butchart on February 15, 2011
Style Name: Canon Digital SLR Cameras
I wouldn't expect L quality with this lens, but it does have some nice features (OS, HSM, and f2.8 at 18mm for $200!) and it focuses very quickly and accurately on my T2i.
At first I thought it was going to be a really great lens, but after seeing a lot of CA and softness on the edges of pictures, I am not as impressed. The center of images looks very sharp, but because I always take pictures with the thought that I could publish one, the edge softness is disappointing. *To update this, I have found that stopping to f/8 produces sharp photos, all the way to the edges.
Now for video this is a great lens w/ f2.8 at 18mm. That's one reason I bought this lens and that I'm going to keep it. Because the video files are compressed, the edge softness won't matter nearly as much. Judging from the videos I've taken with this lens I'm much happier with it over the kit lens (18-55mm). The videos taken with the kit lens, even in daylight, just looked bad for some reason. The videos taken with this lens match up nicely with videos taken with my canon 50mm.
Bottom line, if you need f2.8 at the wide end, this is the best value you can get for your crop-sensor DSLR, especially if you don't mind some edge softness. If you happen to capture a really great picture with this lens, a little softness around the edges isn't going to matter, because the center is adequately sharp. Get this lens if you need a versatile zoom for you rebel, 40d, etc. If you already have the kit lens, this lens isn't going to blow you away with how much better it is...you'll just have to weigh the pros and cons (the only con I can think of it the edge softness and CA at wide apertures), and decide for yourself. If this lens cost 600 dollars, I'd be disappointed, but it's only 200.
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