Great link on Deadspin today from Slate about how the angle of the center-field camera skews our perception of the strike zone. 

It seems so obvious that the best view for fans on TV is from straight-away center, yet only three teams use this angle.  The article proves the point by showing a video from a Red Sox-Braves game pitting the two camera angles side by side on a close ball call.  Even more telling is the comparison between the two angles on a slider from Mets lefty pitcher Pedro Feliciano. 

That is all from me, I will let the article do the rest of the talking.  Check it out.