Product Comparison: Sigma AF 18-35mm F1.8 DC HSM vs Canon EF-S 17-55mm f/2.8 IS USM

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General Specifications
AF 18-35mm F1.8 DC HSM
EF-S 17-55mm f/2.8 IS USM
About the Product
SIGMA 18-35mm F1.8 DC HSM is the first zoom lens ever to achieve a maximum aperture of f1.8 throughout the zoom range. It is a wide aperture, standard zoom-lens for digital single lens reflex camera's with APS-C size sensor's.
The Canon EF-S 17-55mm f/2.8 IS USM Lens is a large-aperture lens specifically designed for EF-S type digital SLR cameras, and that offers a super wide angle to short telephoto zoom range, with built-in Image Stabilization.
Key Specs
Mount Type
Canon EF
Canon EF
Maximum Aperture
1.8 /f
2.8 /f
Minimum Focal Length
18 millimeters
17 millimeters
Maximum Focal Length
35 millimeters
55 millimeters
Lens Type
What customers say about "Key Specs"
Sigma AF 18-35mm F1.8 DC HSM Lens for Canon
  • This is an excellent lens with really good picture and video quality.
  • The wide f1.8 aperture is awesome for bokeh and low light performance.
  • Great low light lens.
  • A very sharp lens, with a very fast and usable large aperture.
  • The constant aperture and the lens' clarity are phenomenal.
Canon EF-S 17-55mm f/2.8 IS USM Camera Lens
  • The fast aperture at every focal length, and image stabilization make this an all-in-one lens.
  • Wide F2.8 constant aperture. There are not a lot of lenses you can get for Canon APS-C cameras that are F2.8 in this focal range.
  • It is a great lens for low-light situations thanks to the image stabilizer and large aperture setting.
  • It performs well in low-light situations, and the nice, wide aperture blurs the background beautifully in portraits.
  • Extremely sharp at all apertures.
Size & Weight
3.1 in.
3.3 in.
3.1 in.
3.3 in.
4.8 in.
4.4 in.
28.6 oz.
22.8 oz.
What customers say about "Size & Weight"
Sigma AF 18-35mm F1.8 DC HSM Lens for Canon
  • Despite its size, Sigma's' 18-35mm lens feels well balanced on the camera.
  • The rubber on the zoom and focus rings are the perfect size.
  • Great for on the go. I like the weight of it.
  • This lens is very heavy.
  • Downside is the weight to this lens.
Canon EF-S 17-55mm f/2.8 IS USM Camera Lens
  • It's a great size and feels very professional when on your camera.
  • The construction looks and feels great, has good size.
  • The only significant drawback of it is the size/weight.
  • This lens is too heavy for its size.
  • This is a heavy lens, no way around it.
Minimum Focus Distance
11 in.
13.8 in.
Field Of View
76.5° - 44.2°
78°30' - 27°50'
Zoom Type
Auto Focus, Manual Focus
Auto Focus, Manual Focus
Optical Stabilization
What customers say about "Imaging"
Sigma AF 18-35mm F1.8 DC HSM Lens for Canon
  • The zoom and focus ring are buttery smooth.
  • It's very quiet and moves smoothly.
  • The lens is able to focus very fast and with the HSM you can't hear a thing.
  • Zoom and focus ring are insanely smooth.
  • Autofocus has poor precision and poor accuracy.
Canon EF-S 17-55mm f/2.8 IS USM Camera Lens
  • The auto focus worked great, was plenty fast and is pretty quiet.
  • Image stabilization is a must for hand-held video shots and allows for hand-held shots at slower shutter speeds.
  • Very fast focus, as well as accurate.
  • The IS and auto-focus is effective and fast enough for me.
  • The speed of focus is satisfactory, the sharpness is good and it is light to carry.
Brand Compatibility
Sensor Type Compatibility
Lens Groups and Elements
17 elements in 12 groups
19 Elements in 12 Groups
Number of Aperture Blades
Filter Diameter
72 millimeters
77 millimeters
High-precision, rugged brass bayonet mount, Inner Zoom, Rounded diaphragm, Hyper Sonic Motor, Exclusive low-dispersion glass
3-stop Image Stabilizer, Super Spectra coating, Circular aperture, Optional lens hood
What customers say about "Features"
Sigma AF 18-35mm F1.8 DC HSM Lens for Canon
  • The zoom and focus rings are sleek with an overall build quality of a boss.
  • Good control of coma over most of the frame, good for astrophotography.
  • AF switch is painted so easy to know if AF is enabled or not.
  • This lens is amazing, built rock solid.
  • This lens is astounding sharp! Amazing features.
Canon EF-S 17-55mm f/2.8 IS USM Camera Lens
  • The quality of the images is definitely good.
  • Very nice looking, smooth bokeh.
  • Non-existent fringing in high contrast situations.
  • Everything about this lens is quality.
  • No lens hood included.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information
879.99 $

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