Canon EF 17 40mm f/4.0L USM Standard Lens

Product information

The Canon EF17-40mm USM is an ultra wide zoom lens designed for professional and high amateur SLR EOS users.

It is especially well suited for digital SLR cameras with an imaging sensor size smaller than the 35mm format. On such cameras these focal lengths can give an angle of view approximately equivalent to that of a 28-70mm lens used on a 35mm camera, which makes it the ideal standard zoom lens.

Super Spectra Coating on the elements ensures excellent colour balance and minimizes ghosting and flare. To provide superb image quality over a 17-40mm zoom range the lens uses three aspheric elements of two different types while Super Ultra-low Dispersion glass is used to prevent aberrations that can degrade the clarity.

The Auto-focus works silently and quickly thanks to a fast central processing unit and you can override AF mode with manual focus should you wish. Its circular aperture can also achieve a more attractive appearance to out of focus background areas in a picture.

Minimum focusing distance is just 28cm throughout the entire zoom range. It’s highly resistant to moisture and dust, and environment friendly lead-free glass is used throughout its construction.

Suitable for use with Canon Digital SLR cameras.

Auto Focus Motor
Yes- USM
Brand
Canon
Diaphragm Blades
7
Dimensions
L97 x Dia.83.5mm
Eligible for International Delivery
NO
Equivalent Focal Length Information Focal length when viewed through cameras with a cropped sensor
27-64mm (APS-C 1.6x crop factor)
Filter Thread (mm)
77mm
Focal Length
17-40mm
Image Stabilisation
No
Lens Elements
12
Lens Groups
9
Lens Mount
Canon EF
Magnification
0.24x
Maximum Aperture
f/4
Minimum Aperture
f/22
Minimum Focus Distance
28cm (11.02")
Model name / number
EF17-40mm
Sensor Format
Full frame, Canon APS-C
Weight Information Unpackaged weight
500g

Delivery

Click & collect

Free Click & Collect from John Lewis and Waitrose shops for collection tomorrow from 2pm
309 participating John Lewis and Waitrose shops
Free

Standard UK delivery within 5 working days

Free

Next, named or Saturday UK delivery.

£6.95

Next/named working day UK delivery pre-10.30am.

£9.95

Collect+ from a local shop from tomorrow - postcode exclusions apply for Collect+ deliveries

5000+ participating Collect+ shops
£3.00

International delivery not available

Returns

We want you to be happy with your purchase. If you're not, just return the products to us or to one of our shops. Unless faulty, we'd like this to be within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Depending on the type of product, you can make free returns via our shops, Royal Mail (or courier collection for large or heavy items), Collect+ or via MyHermes.

Find out more about returning products

Q & As

Strings...

Canon EF 17 40mm f/4.0L USM Standard Lens 4.8 5 5 5
An excellent wide angle lens This is a great wide angle lens & in my eyes represents better value than the 16-35 for a few reasons: 1- it's literally half the cost 2- it's a lot lighter 3- I don't have a need for f2.8 when shooting landscapes. I really like the images that it produces & the quality of the L glass speaks for itself. 19 March 2014
Great bit of kit I have had this lens for about 3 years and it is excellent. I use it mostly for landscape photography and it does a very good job. Optics are first class and I can get pin sharp photos everytime. Good build quality and feels very robust. I have used it in the cold, in the rain, in salt spray and it has never let me down - a real workhorse. It is the cheapest L lens but do not let that put you off ,it will do an excellent job. 16 February 2013
Canon 17-40mm len Just recently brought this wonderful lense to put on my 7D and it's amazing piece of kit the results are fantastic !!!!! 27 July 2012
A professional quality lens for all round use A lens designed for all Canon SLRs, it's a super wide angle zoom on full frame, and gives a field of view equivalent to a 28 - 70mm lens when used on a camera with a smaller digital sensor. So this lens could be a very high quality replacement for a 'kit' lens that came with the camera. As you'd expect, optical quality is very high and the build ensures good protection against dust and moisture. 08 July 2011
Brilliant lens Great lens from Canon, good price from John Lewis. Excellent delivery service. 07 July 2011
1-5 of 5
Digital Cameras Buying Guide
Digital Cameras Buying Guide

Take advantage of our experience in seeking out your ideal camera.


£619.00


Product code :

82972616

Additional services

  • 2 year guarantee included


More than 10 in stock