The 40D and 50D have the same continuous speed, 6.3 frames/s.
Above, a white paper is mentioned for the 7D. Is there one somewhere? Last time I looked I couldn't find any. The nearest I came was a series of screens at Canon's European website.
I've actually now had an experience with Micro Adjust that seems to improve the result with a lens, without causing any other problems. Have to try it in full daylight before I can confirm it, but indoors and outdoors in the evening it seemed to help. But this was with the EF 50 mm f/1.4 USM, so not any zoom.
TeamSpeed is right, I didn't try to say that every 60D user is an idiot, unable to master focus adjustment. I was trying to say that Canon aims each model for a certain segment of customers, and I'm pretty sure that on the average, the lower the cost of the "toy" is, the less intrigued to learn all its pecularities the customers will be.
I think TeamSpeed is right about my age too... Anyone recognizing the camera in my avatar to the left here, and knowing it's my first Canon, can make a good estimate...




Seriously, 60D + Monopod is perfect for weddings
