Canon EF 17-40mm f/4L USM Lens

Product Highlights

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • One Super Ultra-Low Dispersion Element
  • Three Aspherical Element
  • Super Spectra Coating
  • Ring-Type Ultrasonic Motor AF System
  • Weather-Sealed Construction
  • Rounded 7-Blade Diaphragm
Special Price £474.99 Regular Price £702.99
In stock
SKU EF 17-40mm f/4L USM

Features:

Spanning a versatile wide-angle range, the EF 17-40mm f/4L USM Lens is a Canon L-series zoom featuring a constant f/4 maximum aperture along with a sophisticated optical design and durable construction. One Super UD element is featured, along with three aspherical elements, which help to reduce both chromatic and spherical aberrations in order to realize high sharpness, clarity, and color accuracy. A Super Spectra coating has also been applied to suppress flare and ghosting for improved contrast in difficult lighting conditions. Complementing the imaging capabilities, this wide-angle zoom also features a ring-type USM and internal focusing mechanism to afford quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. Additionally, this lens is weather-sealed for use in trying environmental conditions.

Wide-angle zoom is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 27.2-64mm equivalent focal length range. Constant f/4 maximum aperture maintains consistent illumination throughout the zoom range.

One Super Ultra-Low Dispersion glass element noticeably reduces color fringing and chromatic aberrations for high clarity and color fidelity. Three aspherical elements minimize spherical aberrations and distortions for improved sharpness and accurate rendering.

Super Spectra coating has been applied to individual elements to minimize ghosting and flare for greater contrast and color neutrality when working in strong lighting conditions. A ring-type Ultrasonic Motor (USM), along with an internal focusing system, is employed to deliver fast, precise, and quiet autofocus performance as well as full-time manual focus override.

Rounded seven-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques. As a member of the esteemed L-series, this lens is sealed against dust and moisture for working in inclement environmental conditions.

In addition to the front 77mm filter ring, this lens also has a rear filter holder for up to three cut gel filters.

GENERAL FEATURES

Focal Length 17 - 40mm
Aperture Maximum: f/4
- Minimum: f/22
Camera Mount Type Canon EF
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 104° - 57° 30'
Minimum Focus Distance 11.02" (28 cm)
Magnification 0.24x
Maximum Reproduction Ratio 1:4
Optical Design 12 Elements in 9 Groups
Diaphragm Blades 7, Rounded

Features

Autofocus Yes

Physical

Filter Thread Front: 77 mm Rear:
Dimensions (DxL) Approx. 3.29 x 3.81" (83.5 x 96.8 mm)
Weight 1.10 lb (500 g)

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

Shipping Policy:

Handling Time: 1-2 Working Days

  • It takes 3-5 days working days for Standard Delivery Time to deliver in UK and EUROPE, and approximately 5-7 working days for global locations.
  • All our shipments are handled only on business days Monday-Friday ( We don’t ship on Saturday, Sunday Or Bank Holidays)

Courier Partners Worldwide: Royal Mail, FedEx, USPS or Others

Shipping Method: Standard Worldwide Shipping

For more information on International Shipping policies, please visit International Shipping.

Products Guarantee:

All Item are 100% Genuine, Brand New & Never Worn.

  • Item comes original manufacturer's serial numbers, Original Box, Manual, Tags etc
  • 1 to 3 Year Warranty on all watches

We have 30 days return policy, At Benshop, your complete satisfaction is important to us. If for any reason you are not 100% satisfied with your purchase simply send your item back to Benshop in its new, unused condition, with original packaging and we will be happy to provide you with either a full refund of the purchase price or a store credit toward an exchange (excluding shipping & handling charges). Some conditions may apply. Please read our full return policy.

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