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

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EF17-40L
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Ultra wide-angle zoom perfect for landscapes

The Canon EF 17-40mm f/4L lens belongs to Canon’s professional range of L-series lenses, assuring it is tough and captures beautifully crisp images with great colour. Enjoy shooting landscapes, group shots, cityscapes and more with a non-distorted, ultra-wide angle of view. The constant f/4 maximum aperture offers even more flexibility with this great lens designed for full-frame sensor cameras (with APS-C compatibility).

Versatile ultra-wide zoom

On full-frame cameras, the ultra-wide 17mm angle is perfect for capturing sweeping landscapes, architecture and street photography, as well as situations like large group photos at weddings. The full 17-40mm zoom range however offers great variety – and with a minimum focusing distance of just 28cm, you can truly get up close to your subject and capture the detail, whether it’s a person, an object or the food on your plate! Like other Canon L-series lenses, this EF lens is also compatible with Canon APS-C sensor cameras, to offer an equivalent of a 28-70mm zoom.

Impeccable colours

The Canon EF 17-40mm f/4L USM Lens is a fabulous lens for shooters who enjoy shooting the beauty of landscapes, travel and street photography, and can come in handy in a range of everyday shooting conditions. This lens features many quality, thoughtful features, and has been designed with 12 lens elements in 9 groups – including Super Ultra Low Dispersion glass and three aspherical lenses for precise correction of chromatic aberrations. A Super Spectra Coating on the elements assists to reduce flare and ghosting and deliver lovely colour reproduction.

Wide aperture range

Even if you zoom in on details like flower petals or fruit bulbs in the field, the f/4 maximum aperture remains constant, so you can maintain control over depth of field and let plenty of light into your shot. That also means you don’t have to change your ISO or shutter speed constantly when zooming in and out with the lens to get the right settings. Constructed with 7 aperture blades, this ultra-wide angle lens can create beautifully smooth bokeh for out of focus background effects in images, which is ideal for portraits.

Superb autofocus and durability

This beautiful lens flaunts an ultrasonic autofocus motor, which delivers fast and precise autofocusing that is also wonderfully silent. Wherever and whatever you’re shooting, you can trust this lens will keep up, do a great job and not make a sound – perfect for shooting in nature. The whole setup is encased in a dust-resistant and moisture-resistant body, ensuring maximum durability.

Versatile and portable

At just 475 grams – less than half a kilo – this Canon lens is comfortable to carry around with you, and is especially handy for travel. This lens has easily become a favourite of photographers around the world, as it is not too heavy to lug around nor too light that you might miss it. Its versatility in weight and size is just perfect. When on camera, it makes it easy for you to stash in a medium carry-on bag.

More Information
Brands Canon
Format Full Frame
Lens Mount Canon EF
Lens Series No
Focal Length 17 - 40 mm
Aperture Maximum:f/4.0
Minimum:f/22
Diaphragm Blades 7
Angle of View Diagonal : 104° - 57° 30'
Horizontal :
Vertical :
Min. Focus Distance 28 cm
Magnification 0.24x
Max. Reproduction Ratio 1:4
Filter Thread Front, 77 mm
Lens Hood Yes, Removable
Tripod Collar No
Stabilisation No
Connectivity No
Colour Black
Lens Type Wide Angle Lenses, Zoom Lenses
Speciality Auto Focus, Constant Aperture Zoom
Genre/Use General
Physical Weight (Grams) 500.00 gms
Physical Dimensions 8.35 cm x 9.68 cm
Shipping Weight 1.5000
GTIN/UPC Code 13803028058

Can I only use this lens on a full-frame sensor camera?

The Canon EF 17-40mm f/4L USM Lens is an L-series Canon lens designed for use with full-frame sensor cameras. However it is also compatible with APS-C sensor cameras, where it will deliver an equivalent 28-70mm zoom range.

Which filters can I add on to the lens?

There are various filters you can attach to this lens, which features a 77mm diameter. To create effects, you might enjoy working with a polarising filter such as the Kenko Pro1D 77mm polarizing filter, which will help to make skies bluer and remove surface reflection of water so you can see more detail beneath the surface. We do recommend always using a UV or clear filter however for general lens protection – great picks could include the B+W XS-Pro Digital 77mm Clear filter, the Kenko Pro1D 77mm protection filter, or the Hoya HD 77mm protection filter. These optically clear filters won’t affect image quality, but will help to reduce dust, and protect from scratches, moisture and other elements that might damage your lens.

Why use a lens hood?

As well as helping to stop unwanted sun rays entering the lens and creating glare, lens hoods do offer an element of immediate protection for the lens in case of accidental trips and falls.

How can I keep my camera lens clean?

The performance and life of the lens greatly depends on how you clean it. You may use a lens pen or a cleaning cloth but the use of a residual oil remover is always considered best. This is designed to emulsify and remove the microscopic film of oil residing on the surface of the lens that is caused by environmental pollution.

  • Canon EF 17-40mm f/4L USM lens
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Lens Pouch
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