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Canon EF 17-40mm f/4L

Click to view recommended Canon at B&H Photo

An illuminating review of this lens is found in DAP, comparing it to the following lenses:

The Canon 17-40mm f/4L is a compromise between price (about $750) and quality. Prime (non zoom) lenses offer better results in this range, sometimes much better, and the 16-35mm f/2.8L II is generally superior optically as well.

However, the 17-40 offers an attractive combination of price, size and weight, and will make a fine lens on cameras that do not have full-frame sensors.


Per Canon.

Specifications for Canon EF 17-40mm f/4L
Aperture scale: f/4 - f/22
Angle of view 104° - 57°
Minimum focus distance 11" = 28cm
Image ratio at close range:            1:4
Number of elements/groups: 9 / 12
Filter size: 77mm (gelatin filter slot on the rear of lens accepts up to three gel filters)


Dimensions (with caps): 83.5 in diameter, 97mm long
List price: $750 street price
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Get the Canon 17-40mm f/4L at our trusted vendor B&H Photo for about about $750.

Please see the in-depth review in DAP.

Learn more about Canon lenses

For in-depth reviews of lenses that fit Canon cameras (Nikon and others), subscribe to Diglloyd’s Advanced Photography (DAP).

DAP is not just about lenses, it’s about cameras and technique and making better images, written to be approachable by beginner’s, but valuable to professionals. New material is constantly being added, so subscribe now!

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