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

Be the first to review this product

Share/Bookmark

Availability: In stock

Regular Price: $1,026.00

Special Price: $949.00

Quick Overview

While an excellent ultra-wide zoom lens for film SLR cameras, the Canon EF 17-40mm f/4L USM Lens is especially well suited for use with EOS digital SLR cameras, which usually have an imaging sensor size smaller than the 35mm format. When used with such digital SLR cameras, the 17-40mm focal length range gives an angle of view approximately equivalent to that of a 27-64mm lens upon 35mm cameras, making it an ideal medium-aperture standard zoom lens.

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

Double click on above image to view full picture

Zoom Out
Zoom In

More Views

While an excellent ultra-wide zoom lens for film SLR cameras, the Canon EF 17-40mm f/4L USM Lens is especially well suited for use with EOS digital SLR cameras, which usually have an imaging sensor size smaller than the 35mm format. When used with such digital SLR cameras, the 17-40mm focal length range gives an angle of view approximately equivalent to that of a 27-64mm lens upon 35mm cameras, making it an ideal medium-aperture standard zoom lens.
The EF 17-40mm f/4L USM, like all of the Canon "L" lenses, delivers optical performance equal to similar fixed focal length lenses, with silent, high-speed focusing. Distortions and aberrations are remarkably small for a lens of such amazing capability. It combines 1 high-precision molded glass aspherical lens and 2 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.
The 17-40's 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 of the size of the lens. 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.
• An autofocus super wide angle zoom lens for both film and digital cameras
• Produces 27-64mm equivalent focal length with "APS-C" size digital EOS SLR cameras (such as the EOS 20D, EOS 30D, EOS Digital Rebel, EOS 50D, etc.)
• Uses 3 aspherical lens elements and Canon Super UD ultra-low dispersion glass
• Provides professional levels of moisture and dust resistance
• Internal zooming and focusing
• Circular aperture diaphragm for better, more natural looking background blurring
• Accepts 77mm filters, as well as gelatin filters upon the rear of lens
Manufacturer Canon
Model EF 17-40mm f/4L USM Lens

Use spaces to separate tags. Use single quotes (') for phrases.


Write Your Own Review

You're reviewing: Canon EF 17-40mm f/4L USM Lens

Included Warranty

Canon lenses - 1 Year International Warranty - CANON AUSTRALIA WILL SERVICE/SUPPORT
Nikon lenses - 1 Year International Warranty - NIKON AUSTRALIA WILL SERVICE/SUPPORT
Canon cameras - 1 Year International Warranty
Nikon cameras - 1 Year International Warranty
LCDVF - 2 Years International Warranty
Zacuto - Limited Life time Warranty

shipping

    Cameras - 2-10 Working Days
    Lenses - 2-10 Working Days
    Accessories - 2-10 Working Days

    Your order will be delivered between 9am and 5pm, Monday to Friday (excluding public holidays). Someone will need to be at the nominated address to accept and sign for the delivery.
  • • Estimated delivery time does not commence until your payment has been received by us.
  • • The delivery time is an ESTIMATE only and the delivery date will be affected by:

  • 1. Clearance of your payment to us from your financial institution;
    2. Whether the supplier has a shortage of stock;
    3. Your delivery address. If you live in a non-metropolitan or regional delivery zone a longer delivery time may apply to your order.