Sigma 17-50mm f/2.8 EX DC OS HSM Lens for Canon EF

Sigma 17-50mm f/2.8 EX DC OS HSM Lens for Canon EF

Sigma 17-50mm f/2.8 EX DC OS HSM Lens for Canon EF

B&H # SI175028CA MFR # 583101
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Product Highlights

  • EF-Mount Lens/APS-C Format
  • 27.2-80mm (35mm Equivalent)
  • Aperture Range: f/2.8 to f/22
  • Two FLD Elements
  • Three Aspherical Elements
  • Super Multi-Layer Coating
  • Hyper Sonic Motor AF System
  • OS Image Stabilization
  • Rounded 7-Blade Diaphragm
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Configuration: Lens Only

Lens Only

Price: $669.00

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Sigma 17-50mm f/2.8 Overview

  • 1Description

Characterized by its versatile zoom range and bright design, the Canon EF-mount 17-50mm f/2.8 EX DC OS HSM from Sigma covers a wide-angle to portrait-length range and features a constant f/2.8 maximum aperture to excel in available light conditions. The optical design incorporates a pair of low dispersion elements along with a trio of aspherical elements to reduce a variety of aberrations and promote greater sharpness and clarity. A Super Multi-Layer Coating is also used to suppress flare and ghosting for improved contrast and color accuracy. Benefitting the optics, a Hyper Sonic Motor affords quick and quiet autofocus performance while an Optical Stabilizer minimizes the appearance of camera shake for sharper handheld shooting. Additionally, the lens is distinguished by its sleek profile, making it an ideal lens for walkaround and travel shooting.

Standard zoom lens is designed for APS-C-format Canon EF-mount cameras and provides a 27.2-80mm equivalent focal length range.
Constant f/2.8 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.
Two F Low Dispersion (FLD) elements are featured in the optical design, and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy.
Three aspherical elements are used to help limit distortion and spherical aberrations and also contribute to greater overall sharpness and accurate rendering.
Super Multi-Layer Coating has been applied to individual elements to minimize flare and ghosting for improved contrast and color accuracy when working in strong lighting conditions.
Hyper Sonic Motor (HSM), along with an internal focusing design, realizes quick and quiet autofocus performance as well as full-time manual focus override.
Minimum focusing distance of 11" and a 1:5 maximum magnification ratio benefits working with close-up subjects.
Optical Stabilizer system minimizes the appearance of camera shake to benefit making sharper imagery when shooting handheld.
Rounded seven-blade diaphragm contributes to a pleasing bokeh quality.
UPC: 085126583545
In the Box
Sigma 17-50mm f/2.8 EX DC OS HSM Lens for Canon EF
  • LCF-77 III 77mm Lens Cap
  • Rear Cap LCR II for Canon EF Mount Lenses
  • Lens Hood for 24mm f/1.8 EX Digital, 17-50 f/2.8 EX, 28mm f/1.8 EX Lens
  • Lens Case
  • Limited 1-Year Warranty
  • Limited 3-Year U.S.A. Warranty Extension
  • Table of Contents
    • 1Description

    Sigma 17-50mm f/2.8 Specs

    Focal Length 17 to 50mm
    Comparable 35mm Focal Length: 27.2 to 80 mm
    Aperture Maximum: f/2.8
    Minimum: f/22
    Camera Mount Type Canon EF
    Format Compatibility APS-C
    Angle of View 79.7° to 31.7°
    Minimum Focus Distance 11.02" / 28 cm
    Magnification 0.2x
    Maximum Reproduction Ratio 1:5
    Optical Design 17 Elements in 13 Groups
    Diaphragm Blades 7, Rounded
    Image Stabilization Yes
    Autofocus Yes
    Filter Thread Front: 77 mm
    Dimensions (DxL) 3.29 x 3.61" / 83.5 x 91.8 mm
    Weight 1.24 lb / 565 g
    Packaging Info
    Package Weight 1.9 lb
    Box Dimensions (LxWxH) 5.6 x 4.8 x 4.7"

    Sigma 17-50mm f/2.8 Reviews

    17-50mm f/2.8 EX DC OS HSM Lens for Canon EF is rated 4.5 out of 5 by 391.
    Rated 5 out of 5 by from Perfect fit for 7D I was very upset with my new 7d images, very poor iq or image quality. after weeks of research and reading reviews I head my heart set on a new Canon 15-85 lens. So I spent hours trying different lenses from Canon, Sigma and Tamron. and walked out with this lens. it was the fastest on AF and the sharpest of all plus easier to see my adjustments in manual then all the rest. there's no manual focus in AF mode, plus limited range but the sharpest pictures I have been waiting for and expected from a two thousand dollar camera. I love my 7D now and the images from this lens hands down over all others in this price range, test your equipment before you by!
    Date published: 2010-08-18
    Rated 3 out of 5 by from Brilliant but flawed The optics in this lens are very impressive and it is a nice size and build quality. Unfortunately the autofocus mechanism did not play nice with my Canon 7D at all. It back-focused most dramatically in the middle of zoom range and using the focus squares farther from center. I've never seen anything like it and hope I never do again! I had to send it back ... Will definitely be using B&H again, but I am at a loss to decide which lens in this class to try next. Should I take a chance and order another one or pay twice as much for the Canon equivalent which might also be flawed? Autofocus is surely the achilles heel of current DSLR systems.
    Date published: 2011-08-08
    Rated 3 out of 5 by from Lots of Rattling and Autofocus Issues I'm not sure what the hype is on these lens, but I received two different copies of these lens and both made a ton of rattling while trying to autofocus on a shot for pictures and film. B&H photo has the best customer service and allowed me to exchange my first defected lens for another. However, I found that both had the same issues. I will stick to canon as their lens never rattle and autofocus quietly for me. The aperture brings in so much light for the shots and I love that but I could not get past the rattling noise. Try this lens and see if you like it! I'm not dissuading anyone from buying it. It just didn't work out for me.
    Date published: 2018-01-31
    Rated 5 out of 5 by from Wow! The negatives you read about are not apparent in my lens. Many complaints I think come from not understanding the many control aspects of a DSLR and photography in general, but that is my guess. At any rate, this is a must buy if you have a crop sensor Canon. Makes all the difference in the world with my Rebel XSI and is the focal range I work with most. Looks good on the camera a produces the photos I wanted but was not always getting with the kit lens (in low light without the speedlight) Glad I made this purchase. It will be a keeper even after I move beyond the Rebel to another Canon crop sensor camera someday. Get yourself one from ...!
    Date published: 2011-08-17
    Rated 3 out of 5 by from Good, but not great, for the money I own the Canon 15-85 3.5-5.6 zoom, and purchased this as a faster alternative due to this having a constant 2.8 aperture. However, I found it a big soft wide open and needed to stop down to f4 to equal the quality (sharpness, contrast, and saturation) of the Canon wide open. The Sigma is almost as large and heavy as the Canon, but of course does not cover the 51-85mm range. So, for about half the cost of the Canon this is a very good budget alternative, but it's not a step up. In lower light I'll just increase the ISO by a stop. I returned the Sigma.
    Date published: 2016-04-05
    Rated 4 out of 5 by from Returned due to focusing motor noise I liked the picture quality on my 70D but returned it due to squeaking focusing motor noise. The replacement lens works fine so far. I give B&H 5 starts for making it a hassle free transaction. I have no issues with auto focus as some reviews suggest. It's as sharp (if not sharper) as the Canon 17-40mm f/4 and the Tamron 24-70mm f/2.8 that I tried and returned. At $400+, this lens is a good value and a worthy upgrade from variable aperture Canon kit lenses. Couple of nit picks: The lens doesn't have full time manual focusing and the focusing ring turns on auto-focus. You need to be careful not to hold the lens by the ring. I can see the hood holding grooves can wear out easily over time.
    Date published: 2016-03-05
    Rated 4 out of 5 by from Great Buy I bought this lens because i wanted a wide angle zoom, but couldn't afford L-series glass. There was a slight clicking type of sound when focusing manually with the lens pointing up, but that has seemingly gone away with a day of moderate use... hope it's not a broken piece of gearing or something, but it seems fine now... other than that it's a sturdy build, takes great pictures with what my novice eye sees as good color and good contrast... I've seen a little bit of color aberrations on edges towards magenta, but it also could be sensor related... new camera body, and new lens.. For the money you can't beat it.
    Date published: 2010-09-03
    Rated 5 out of 5 by from Best zoom lens for APC-S I bought this lens for inside photos, weddings and walk around wide angle shots. It is great for all those purposes. At 2.8 it's really sharp. You only need to stop it down if you want wide shots with sharp edges. Otherwise, 2.8 works great for almost any situation. Focus motor is a little noisy but not too much like, for example, the Canon EF 50mm f/1.8 II. Other than that, it is acceptable fast, and most important, very accurate. Construction is a little weak, cheap plastics compared to my previous Canon 18-135mm, but it doesn't feel like if you will break it. Zoom and focus rings move smoothly. Optical stabilization works fine. The only bad to me is its weight. It feels heavy!
    Date published: 2016-01-20
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    Sigma 17-50mm f/2.8 Q&A

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