I recently bought a Nikon D90 and went to photograph some planes with it. Zooming in very far I noticed this transition (which *should* be white painted on red and therefore one pixel red, the next white). Is this normal for such a camera, or am I doing something wrong? Other objects nearby are not out of focus or blurred. The image itsself is at http://www.phys.ethz.ch/~kingb/DSC_1461.JPG. You are free to C&C the image, but the main reason I'm posting is because of those worrying pixels!