Canon EOS 1D X Digital Camera Review$6,800.00
The Canon 24-70mm f/2.8L that we used for testing the 1D X keeps chromatic aberration down very well, though there was still some present in the JPEG images the camera took. When shooting RAW, this aberration is very minor and easily corrected in software. In general the major areas of concern we saw were with the aperture wide open at the extreme ends of the focal range. Even then lateral chromatic aberration was minor, and didn't effect image quality all that much.
Distortion was pretty minimal with the 1D X and the (original) 24-70mm lens, with just 1.13% barrel distortion visible at the wide end of 24mm. That almost immediately went away through the focal range though, turning into a 0.41% pincushion distortion at the middle focal length of 45mm. That pincushion distortion gets slightly worse, increasing to 1.66% at the telephoto end of 70mm. Ultimately these are acceptable results, and won't detract from most photography all that much.