With a 24-105mm focal length, the lens delivers a 4.3x optical
zoom range from wide angle to short telephoto. As such it's an ideal general
purpose lens suited to capturing both wide landscapes and tighter portrait
As an 'L' model, the lens is designed and built to Canon's highest
standards. The design consists of 18 elements in 13 groups with both Super
UD (ultra low dispersion) and aspherical glass to combat chromatic and spherical
aberrations respectively. High-speed quiet focusing is provided by an Ultrasonic
USM motor, while camera shake is reduced by Canon's latest Image Stabiliser
In this review we'll take an in-depth look at the Canon EF 24-105mm
f/4L IS USM lens and compare it against the professional's existing benchmark
EF 24-70mm f/2.8L. Is it worth losing a stop for a longer focal range and image
stabilisation? Find out here. We'll also
compare it against Canon's EF 17-40mm f/4L, which while clearly offering a different
range, has become a popular and much more affordable option for the 5D. After
all, at around two thirds the internet price of the EF 24-105mm, the EF 17-40mm is one of the cheapest Canon L lenses available.
NEW: For an overview of the headline features of this lens, check out our Canon EF 24-105mm lens video tour.
Each lens was tested using a Canon EOS-5D body. The serial numbers
of the 24-105mm, 24-70mm and 17-40mm lenses tested were 305841, 54788 and
Note: Some early versions of the EF 24-105mm f/4L IS USM suffered from an
internal flare problem. This has been identified and Canon is offering repairs free of charge for affected models. Canon UK and Canon USA have published details on identifying models where the problem may occur.