CameraLabs have reviewed the new Canon EF 24-105mm f/4L IS USM lens, which features a fixed aperture of f/4 throughout the zoom range and an Image Stabiliser that allows shutter speeds of 3 stops slower than normal.

“The lens performed well across its range, particularly in terms of corner sharpness at wide angle, while essentially matching our EF 85mm f1.8 prime in terms of resolving power. We were also impressed with the Image Stabilisation which allowed us to handhold at much slower shutter speeds than normal. Compared to lenses designed for bodies with smaller sensors though, it suffered from a worse degree of light fall-off, but this is par for the course for wide-angle lenses designed for full-frame bodies.”

Website: CameraLabs - Canon EF 24-105mm f/4L IS USM Lens Review