I shoot a lot of motorcycle racing, mostly panning and straight on shots, sometimes wide angle and sometimes closely cropped. I've noticed that predominantly white bikes or predominately black bikes seem to have the lowest success rate when it comes to being tack sharp every time. For example, I might shoot 10 shots and have to toss 5 or 6 because they aren't sharp enough to keep. However, bright colors, like reds, yellows and greens, seem to have the higher success rate, with metallic silver being, perhaps, the best of the colors. I might only have to toss 2 or 3 of these out of a 10 image sample. (Reference numbers, only, mind you.)
It is just me, or is there a real relationship to color when it comes to sharpness? I know, of course, that colors reflect light differently, and white and black are on opposite ends of that spectrum, so if there's really a link between the color and the AF ability, how does one cope with this?
BTW, I've noticed this with all of my lenses, but let's use the 70-200 f/2.8 IS II as the guinea pig lens for argument's sake.
