Canon EF 17-40mm f/4L USM Ultra-Wide Zoom Lens - Black

Canon
Product #:
CNL5002
Manufacturer #:
8806A002
UPC:
013803028058

Rated 5.0 out of 5 stars.

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  • Canon EF 17-40mm f/4L USM Ultra-Wide Zoom Lens
  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4-22
  • Ring-Type Ultrasonic Motor AF System
  • Rounded 7-Blade Diaphragm
  • One Super Ultra-Low Dispersion Element/Three Aspherical Elements
  • Super Spectra Coating
  • Weather-Sealed Construction
  • Color: Black
Canon CarePak Protection
Lens Filter Size:
77mm (Gel Filter Rear)
Lens Filter Size:
The size of the filter that fits the lens.
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Lens Type:
Ultra-Wide Zoom Lens
Lens Type:
This is the type of lens.
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Includes FREE: Yashica 77mm Multi-coated UV Filter

Overview

The Canon EF 17-40mm f/4L USM Ultra-Wide Zoom Lens (Black) is designed with a wide-angle range, & is one of Canon's L-Series zoom lenses. The EF 17-40mm Ultra-Wide Zoom features a constant f/4.0 maximum aperture, a high quality optical design, & is designed to have a durable construction. In order to help reduce chromatic & spherical aberrations for high sharpness, clarity, & color accuracy, one super UD element, & three aspherical elements are featured in the lens' design. The lens also features a Super Spectra coating to reduce flare & ghosting, improving the contrast of your images in difficult lighting conditions. This wide-angle zoom is also designed with a ring-type USM, & internal focusing mechanism to help provide fast, quiet, & accurate autofocus performance (& full-time manual focus override). Its weather-sealed physical design enables use in difficult environmental conditions. 

Other Features:

  • Wide-Angle Zoom: Designed for full-frame Canon EF-mount DSLRs (Compatible with APS-C models with a 27.2-64mm equivalent focal length range).
  • Maximum Aperture: Constant f/4 aperture (maintains consistent illumination throughout the zoom range).
  • Elements: One Super Ultra-Low Dispersion glass element is included to reduce color fringing & chromatic aberrations for clarity & color fidelity. Three aspherical elements are used to minimize spherical aberrations & distortions for improved sharpness).
  • Super Spectra Coating: This coating is applied to individual elements to minimize ghosting & flare (greater contrast & color neutrality).
  • Ultrasonic Motor (USM): A ring-type USM, along with an internal focusing system, is featured to deliver fast, precise, & quiet autofocus (& full-time manual focus override).
  • Seven-Blade Diaphragm (Rounded): Contributes to a bokeh quality (out of focus) that helps control shallow depth of field/selective focus techniques.
  • Rear Filter Holder: A front 77mm filter ring, & rear filter holder are also featured (for three cut gel filters).

Product Reviews

wide&sharp

Reviewed on Monday, May 3, 2010

By: Anonymous

Rated 5.0 out of 5 stars.

My favorite lens. It is super sharp I can't express the super enough. Takes gorgeous wide angle pictures--even when the lighting is not perfect. I've been happy with almost all my photographs taken with this lens & that is saying a lot. It gives a wonderful wide view appearance without the small "fisheye" look some other wide angle lenses tend to give off. The construction is very strong and the auto focus is fast.

Specifications

Brand
Canon Canon - Logo
Physical Specifications
Dimensions: 3.29 x 3.81" / 83.57 x 96.77 mm
Dimensions:
The measurements of an object.

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Weight: 1.1 lb / 500 g
Weight:
The physical weight of the item without packaging.

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Color: Black
Color:
The color of the item.

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Brand
Brand: Canon
Lens Specs
Lens Min. Focus Distance: 11.02" / 28 cm
Lens Min. Focus Distance:
The shortest distance that a lens can focus.

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Lens Filter Size: 77mm (Gel Filter Rear)
Lens Filter Size:
The size of the filter that fits the lens.

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Minimum Aperture: f/22
Minimum Aperture:
How wide a lens can be opened.

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Lens Type: Ultra-Wide Zoom Lens
Lens Type:
This is the type of lens.

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Angle of View (diagonal): 104° to 57° 30'
Angle of View (diagonal):
Area of a scene that a lens covers or sees. Determined by the focal length of the lens

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Maximum Aperture: f/4
Maximum Aperture:
How wide a lens can be opened.

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Focus Type: Autofocus
Focus Type:
The type of focus of the lens from full manual control to auto focus.

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Mount Type: Canon EF
Mount Type:
This is the mount type for the lens to attach to the camera body.

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In The Box

  • Canon EF 17-40mm f/4L USM Lens
  • E-77 II 77mm Lens Cap
  • Lens Dust Cap E (Rear)
  • EW-83E Lens Hood
  • Lens Case LP1319
  • Limited 1-Year Warranty

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