La fonte spiega perchè al momento la Canon eos 5D Mark II al momento non registra a 24p:

“…La 5D Mark II registrerà a 24p, un nuovo firmware è già in prova. Non è stato rilasciato prima per mancanza di tempo, ma era pianificato per essere rilasciato con il controllo manuale…”

“The 5D MarkII will have 24p, it is already in a firmware running in testing.  It was not released due to time but it was planned to be released with the manual control.  This is not as easy as some people tend to believe. The codec data rate has 6 frames of spare bandwidth and the file size was still the same as the 30p in the cam I tested. They have to re-code the compression routine in order to run at full speed and not waste file size. This has introduced some problems in stability because the chip can only handle 30p natively and this is basically a hack. No Audio control planned or in the firmware as of yet.

La 60D avrà la modalità video in 720p e 1080p. Il sensore CMOS sarà migliore della 500D.

The 60D will have 720p, 1080p video modes. 30p is already in the firmware and the Mark II hack could be used in this camera easily. Much better CMOS than the 500D improved even from the 5D Mark II.

Via Canonrumors