Excerpt: The latest in a line of storied lenses going back to the 28–80mm f/2.8–4L of April 1989, this is Canon’s fourth high-speed, full-frame, standard-range, L-series autofocus zoom. The previous 24–70mm f/2.8L was introduced in November 2002, and compared with that lens, this version II ($2,299, street)...
REVIEW: Canon EF 24-70mm f/2.8L II USM Lens Review
4 April 2013
Excerpt: Handling and features A professional standard zoom lens covering the popular 24-70mm focal range, which sports a constant fast maximum aperture of f/2.8 and silent focusing with full-time manual focus override.
Summary: The EF 24-70mm f/2.8L II USM is a near-flawless lens with optics that come very close to matching a set of top-quality primes. With fast, accurate autofocus and weathersealed construction, it's difficult to find any really serious faults at all.
Pros: Superb, almost flawless optics, Impressive flare resistance, Fast, silent, and accurate autofocus, Excellent build quality including weathersealing
Cons: Unpleasant vignetting in the 50-70mm region at F2.8 on full frame, Noticeably lower image quality at close focus distances, No image stabilisation, Very expensive
Excerpt: The Canon EF 24-70mm f/2.8L II USM Lens is clearly the best performing Canon full-frame-compatible general purpose zoom lens available. It is the best from both an image quality perspective and from an AF speed/accuracy perspective.
Excerpt: The Canon company has always tried to offer standard, fast, professional zoom lenses. In 1993 the EF 28-70 mm f/2.8L USM was launched and in 2002 it was substituted by the EF 24–70 mm f/2.8L USM.
Cons: lateral chromatic aberration corrected in a worse way than that of the rivals,, huge vignetting on full frame,, weak performance against bright light,, exorbitant price.
Summary: It seems Canon may be attempting to distinguish themselves from the competition by pricing their lens at a premium. There is no doubt that this lens delivers excellent optical performance in pretty much every way, but not many photographers, professional, or otherwise will be able to justify paying...
Pros: Very good build quality, Excellent sharpness, Relatively lightweight, Low CA, Low distortion
Cons: Reassuringly expensive, Falloff at 24mm is quite pronounced at fast apertures and doesn't even fade out until f/8
Canon EF 24-70mm f/2.8 USM L II - Full Format Review / Test Report
22 September 2012
Conclusion: Fast standard zoom lenses are obviously very difficult to design. To date we never really thought "oh, this is it!". Unfortunately this also applies to the mighty Canon EF 24-70mm f/2.8 USM L II. Now this may sound worse than it really is.