Canon EF 17-40mm f/4 L USM

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General information

This is a zoom lens manufactured by Canon and the model was launched 2003.
The lens belongs to the category  wide angle zoom lenses, a wide angle lens where you have the possibility to zoom in and out.

• See all lenses released by Canon
• See all lenses that was released 2003
• Read more about wide angle lenses

Compatibility, autofocus and focal length

This lens is constructed to fit all models of Canon cameras, regardless of camera model or type of sensor.

The ability to use autofocus is available for all cameras.

The lens has a focal length of 17-40 mm. Depending on which camera the lens is used, the experienced and perceived focal length will be different. Please visit the list of compatible cameras below, it will provide the equivalent focal length you get on each camera.

• See compatible cameras and perceived/equivalent focal length
• See a full camera compatibility chart for Canon EF 17-40mm f/4 L USM
• Read more about focal length and your field of view
• Read more on the cameras impact on the perceived focal length

Lens brightness and image stabilizer

The lens brightness and aperture value is f/4.

The lens is to considered fairly bright.  This will make it so much easier shooting in darker environments where you do not want or can use flash lighting, for example in churches or at different sports venues.

A feature worth commenting, which is also related to lens brightness, is that the brightness and maximum aperture-value remains constant regardless of focal length used. This makes it easier for you as a photographer. No matter if you are have the focus ring and focal length at 17 mm or at 40 mm the aperture value can be f/4.

The lens lacks image stabilization, which otherwise os good for avoiding the blur that can occur when using slow shutter speeds. 

• Read more about the aperture and lens brightness
• Read more about how an image stabilizer works

Filter and Lens Hood

The lens has a traditional filter thread on the front and its measuring 77 mm which also the filter you will use must have. If you use for example an UV filter can be a cheap insurance against scratches and dust.

If you buy this lens it will come with a lens hood, whose model name is "EW-83E".

• Read more about filters
• Read more about lens hoods

Prices and awards

TIPA Awards 2003: Professional Lens

Pictures (product and sample images)

In order to see larger product images of the lens, click the link below.

Besides looking at product images it is also of interest to see pictures taken with this specific lens. This can give you a hint of what kind of images this lens can achieve, what the focal length will be like etc.

• Images of Canon EF 17-40mm f/4 L USM
• Sample pictures taken with Canon EF 17-40mm f/4 L USM

Things to consider before buying

Below you will find some summarized points and facts that can be considered as the 'pros and cons' of this lens. These are based entirely on the facts and values that are accessible through the lens specification, so we highly recommend that you also read the reported reviews available (see tab 'Reviews'); this in order to get a more complete view of the lens and its capabilities. Reviewer opinions reflect the lens, its use and its optical performance in a more accurate way, but any way - here a few different points to consider before buying this lens.

• Constant maximum aperture value regardless of focal length
• Works on all sensor types
• A lens hood is included
• The lens is sealed against dust and moisture
• The lens was awarded at TIPA Awards 2003: Professional Lens

Specification

Product Page (Canon):

	Link to Canon (product page)
	Link to Canon (product page)
	Link to Canon (product page)
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Best deals on Canon EF 17-40mm f/4 L USM

Make sure to check out our price information page for best offers on this lens.

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Reviews

	fotosidan.se (reviews by users)
	bhphotovideo.com (reviews by users)
	cyberphoto.se
	ephotozine.com
	ephotozine.com
	fredmiranda.com
	juzaphoto.com
	slrlensreview.com
	sportsshooter.com
	the-digital-picture.com
	Submit a review link

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Does this lens work with my camera?

Below you will find all registered cameras here on Lensora. Whether the actual camera works with this lens or not is displayed with a green or a red symbol, and if you want to know more about why the lens and the camera work or do not work together you click for further information..

Pictures (product and sample images)

In order to see larger product images of the lens, click the link below.

Besides looking at product images it is also of interest to see pictures taken with this specific lens. This can give you a hint of what kind of images this lens can achieve, what the focal length will be like etc.

• Images of Canon EF 17-40mm f/4 L USM
• Sample pictures taken with Canon EF 17-40mm f/4 L USM

Alternatives to Canon EF 17-40mm f/4 L USM for Canon photographers

Below you will find four interesting alternatives to Canon EF 17-40mm f/4 L USM . Make sure to compare these (and other) options before deciding which lens you will buy.

	Canon EF 16-35mm f/2,8 L USM
	Canon EF 16-35mm f/2,8 L USM II
	Canon EF 17-35mm f/2,8 L USM
	Sigma EX 15-30mm f/3,5-4,5 DG

Popular searches for this lens

If you want do dig deeper and look for more information about this lens you can be prepared that other photographers name and search for this lens in a lot of different ways. Here are a few of the most popular search strings:

• Canon 17-40 mm f 4
• 17-40 mm Canon
• 17-40 mm Canon
• Canon 17-40 mm f 4
• Canon 4 17-40 mm
• Canon 4 17-40
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• Canon f 4 17 40

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