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Home » Compare Lenses » Sigma 18-50mm F2.8-4.5 DC OS HSM vs Canon EF 17-40mm f4.0L USM

Sigma 18-50mm F2.8-4.5 DC OS HSM vs Canon EF 17-40mm f4.0L USM

Looking to find more information regarding these two camera lenses? Check out our side by side comparison of the Sigma 18-50mm F2.8-4.5 DC OS HSM vs Canon EF 17-40mm f4.0L USMto review specs, pros and cons, and which is right for you.

Sigma 18-50mm F2.8-4.5 DC OS HSM Top Features

  • 18-50mm Focal Range
  • F2.8 – F4.5 Max Aperture
  • Image Stabilization
  • Filter Thread: 67mm
  • Max Format: APS-C / DX
  • Canon EF Mount
  • Weight: 395g.
  • Diameter: 74mm
  • Length: 89mm
  • Min Focus Distance:0.3m
  • Max Magnification:0.24x

Sigma 18-50mm F2.8-4.5 DC OS HSM

Canon 17-40mm f4.0L USM Top Features

  • 17-40mm Focal Range
  • F4.0 Max Aperture
  • Weather Sealed
  • Filter Thread: 77mm
  • Max Format:
  • Canon EF Mount
  • Weight: 500g.
  • Diameter: 84mm
  • Length: 97mm
  • Min Focus Distance:0.28m
  • Max Magnification:0.24x

Canon EF 17-40mm f4.0L USM

Our Winner: Sigma 18-50mm F2.8-4.5 DC OS HSM over Canon EF 17-40mm f4.0L USM

Focal Length – Tele 50mm vs 40mm
Image Stabilization Yes vs No
Optical Zoom 2.80x vs 2.40x
Max Aperture – Wide 2.8 vs 4
Weight 395g vs 500g
Diameter 74mm vs 84mm
Length 89mm vs 97mm
Filter Thread 67mm vs 77mm

Pros Of Canon EF 17-40mm f4.0L USM over Sigma 18-50mm F2.8-4.5 DC OS HSM
Focal Length – Wide 17mm vs 18mm
Max Aperture – Tele 4 vs 4.5
Depth-of-Field Scale Yes vs No
Max Sensor Coverage 35mm FF vs APS-C / DX
Weather Sealing Yes vs No
Minimum Focus Distance 0.28m vs 0.3m

Sigma 18-50mm F2.8-4.5 DC OS HSM vs Canon 17-40mm f4.0L USM Specs Table

General Sigma 18-50mm F2.8-4.5 DC OS HSM Canon 17-40mm f4.0L USM
Brand Sigma Canon
Lens Type Zoom Zoom
Price CHECK PRICE CHECK PRICE
Lens Type Standard Zoom Wideangle Zoom
Lens Mount Canon EF Canon EF
Max Format APS-C / DX 35mm FF
Focal Range 18-50mm 17-40mm
Image Stabilization Yes No
Colour Unknown Black
Zoom Method Rotary (internal) Rotary (internal)
Power Zoom No
Zoom Lock No
Zoom Ratio 2.8X 2.4X
Aperture
Max Aperture F2.8 – F4.5 F4.0
Min Aperture F22.0 – F36.0 F22.0
Aperture Ring No No
Diaphragm Blades 7 7
Optics
Optical Elements 16 12
Optical Groups 12 9
Special Elements 2 SLD glass elements 3 aspherical elements Super Spectra coatings
Focusing
Min Focus Distance 0.3m 0.28m
Max Magnification 0.24X 0.24X
Autofocus Yes Yes
AF Motor Type Ultrasonic Ultrasonic
Full Time Manual No Yes
Focus Method Internal Internal
Distance Scale Yes Yes
DoF Scale No Yes
Distance Scale Yes Yes
Focus Distance Limiter No Unknown
Physical Specs
Weight 395g 500g
Diameter 74mm 84mm
Length 89mm 97mm
Materials Metal mount Metal barrel, metal mount
Weather Sealing No Yes
Filter Thread 67mm 77mm
Filter Notes Does not rotate on focusing
Hood Supplied Yes Unknown
Hood Code Unknown EW-83E
Tripod Collar No No
Optional Accessories Soft Case LP1319
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