The always polarizing DXOMark has completed their analysis of the new Canon EF 24-105mm f/4L IS II lens.
If high sharpness is your only objective when buying a lens, then the scores achieved by the Canon EF 24-105mm F4L IS USM might be a little discouraging. Looking on the bright side, however, Canon has improved sharpness in the periphery at all focal lengths, even if that’s at the expense of some sharpness in the center. Whether that’s clearly better is open to debate, but in optical performance Canon can be praised for high transmission and for maintaining low levels of lateral chromatic aberration (fringing is lower than many high-grade primes).
Sure, we would have liked to see peak sharpness leap up, but then the price hasn’t sky-rocketed either. Optical performance is just one aspect of lens design, and this update still feels like more than just a step in the right direction. Read the full review
This seems to fall in line with what others have said about the lens. Is it worth the price to upgrade from version 1? Probably not. Is it a good option if you need the focal range? It is, though you can get the Sigma 24-105 f/4 OS Art for $200 less.