Compared to our previous test of the Canon 24-70mm 2.8 II test on a camera with a full frame sensor is entirely as expected, the distortion on a camera with an APS-C sensor now lower. Lenses often deform more at the edges and a Canon 650D use only the center of the image. Only with a focal length of 24mm, there is visible barrel distortion.
Itβs a reasonably sized lens, having an 82mm diameter front ring, measuring 4.25 inches long, and weighing 2.2 pounds. Thatβs just a bit smaller and lighter than the Tamron 24-70mm f/2.8 VC USD or Canon 24-70mm f/2.8 Mk II L lenses, a bit shorter and heavier than the Nikon 24-70 f/2.8 AF-S G. Of course there is an ultrasonic motor and 9We feel that both the Canon 24-70mm f/2.8L II USM ($1,899.00 at Amazon) and 24-70mm f/4L IS USM ($999.00 at Amazon) are better performers, but not to the degree that would merit a seasoned NikonThe reviews I have seen place it between the original EF 24-70mm f/2.8L and the EF 24-70mm f/2.8L II in terms of sharpness. The Tamron, unlike both of the Canon 24-70mm f/2.8 versions, also has Vibration Compensation (VC) which is equivalent to Image Stabilization (IS) in Canon nomenclature. ULao8.