I don't get it, people complain (in other forums like the Magic Lantern one or EOSHD) how bad the Canon 5D codec is, but then the consensus is that using a more robust pro codec like ProRes doesn't make any visible difference.
I'm confused, is the Canon codec bad or not? Because if it is, then using a different and better codec like ProRes should make a pretty visible difference. On the other hand, if the difference will be subtle at best, then how bad is the 5D codec to begin with?