I bought a used 5D recently and discovered that the AF is slow comparing to XTi and 40D I used before. Specially, the images came out OOF when I tried to catch some priceless moments which need fast AF. From the bodies I used, 40D has the fastest AF, XTi is the second, unfortuately the most expensive 5D is the last. The slow AF is more obivious when I use AI servo plus center focus.
Do you guys have the same slow AF issue on 5D? How about 5DII? Does 5DII have faster AF comparing to 5D or 40D?