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Canon EF 17-40mm f/4.0L USM

  • $683.48


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Canon EF 17-40mm f/4.0L USM

PRODUCT HIGHLIGHTS

  • EF Mount L-Series Lens
  • Aperture Range: f/4-22
  • Three Aspherical Elements, One Super UD
  • Ultrasonic Autofocus Motor
  • Manual Focus Override
  • Water and Dust Resistant
  • Internal Zooming and Focusing
  • Truly Circular Diaphragm
  • 77mm Front Filter Diameter
  • Rear Holder for Three Gel Filters

OVERVIEW

The EF 17-40mm f/4L USM Lens from Canon is a high quality "L" series wide angle zoom lens for full frame and APS-C size DSLR cameras. It combines one high-precision molded glass aspherical element and two replica aspherical lenses to achieve the extended zoom range, while also correcting for common aberrations that arise during zooming. A Super UD (Ultra-low Dispersion) glass element minimizes the chromatic aberration of magnification which tends to occur with wide-angle lenses, to help eliminate color bleed along the edges of the subject and achieve high image contrast and resolution.

FEATURES

The lens' minimum focusing distance is just 11" (28cm) throughout its entire range of focal lengths, which makes it very useful for close-up work. All of the focusing and zooming action is done internally, with no changes in the size of the lens. Its ultrasonic autofocus motor enables smooth and silent autofocus action and manual focus override in One Shot AF mode allows precise manual focusing without switching into MF mode.

It only uses lead-free optics to help the environment, and features a circular diaphragm for improved background blur. The housing is water and dust resistant to help ensure reliable performance for both professionals and enthusiasts. Like many "L" lenses, it uses 77mm filters, but also has a rear gelatin filter slot behind the lens mount that can hold three gel filters.

This lens is a Canon 'EF' series lens, indicating it is for use with full-frame cameras. However, it also works with APS-C format DSLRs and offers a 35mm focal length equivalence of 27-64mm, making it an ideal medium-aperture standard zoom lens.

  • A super wide-angle zoom lens for full-frame DSLR and 35mm film cameras that offers a 27-64mm focal length equivalent when used on APS-c size sensors.
  • Uses three aspherical lens elements and Canon Super UD ultra-low dispersion glass for reduced aberrations and overall sharp, high contrast imaging
  • An ultrasonic autofocus motor provides fast, smooth and quiet AF action, particularly important when shooting video.
  • Manual focus override enables precise manual focusing even when in One Shot AF mode.
  • Internal zooming and focusing systems
  • As a Canon "L" series lens it provides professional levels of moisture and dust resistance.
  • Circular aperture diaphragm for better, more natural looking background blurring
  • Accepts 77mm filters, as well as gelatin filters at the rear of the lens.

Warranty, Item Condition and Damaged on Arrival Product Returns

The condition of this item is new.

This product comes with a No Warranty, which is honored by the manufacturer. You may wish to increase your warranty period for additional peace of mind by purchasing one of our Mack Warranties, or if it is one of the few not stocked by us you can purchase that particular warranty directly from Mack.

If your product arrives damaged or defective you must return it to us. The period for notifying Cameraverse that this product is damaged or defective and needs to be returned, is TWO DAYS from when the item is delivered to you. The notification MUST be done in writing through sending an email to returns@cameraverse.com, and MUST include ALL of the required information clearly laid out in our RETURNS POLICY. Unfortunately, we will not be able to accept any returns of damaged or defective products if ALL of this information is not sent to us within this time period. Please be sure that you receive and check your items yourself or if someone else is receiving your goods for you then it is important that they check the order within this time period.