Excerpt: A telephoto lens, which sports a fast maximum aperture of f/2 and silent focusing with full-time manual focus override and costs around £860. In this review we'll take a close look at how it performs.
Pros: Great build quality, Excellent sharpness, Low CA, Fast f/2 maximum aperture
Cons: Sharpness not as good towards the edges at maximum aperture
Canon EF 135mm f/2 L USM - Review / Lab Test Report
8 October 2008
Conclusion: The Canon EF 135mm f/2 USM L is a superb lens with outstanding performance figures in all aspects except maybe vignetting at the max. aperture setting (f/2). The mechanical construction is up to pro standards and the AF is as fast as it gets in EOS land.