I'm wanting to do some test comparisons on image quality differences between a 400D, and a 5D mk2.
Could I take some pictures on the 400D, then take the CF card out and take some pictures on the 5Dmk2 without having to reformat it in the 5Dmk2?
I'm borrowing the 5d from a friend and only have one CF card and can't keep hold of his CF card.
I don't want to buy another CF card just to do this test.
Sorry if the answer to this is obvious (either yes or no), but I don't know it!
The only issue I see has to do with messing up the numbering system. As I recall (always problematical at my age) if you move the card from a camera "a"where the number is 1000 into camera "b" where the next number would logically be 100 it will pick up the numbering at 1001 instead and when a formatted card is moved back into camera "b" the numbering will pick up at 1002. At least that is the way I remember it. And this assumes you are using sequential numbering.
Yes - I ran into the renumbering also - I believe it jumps to the higher number. Being the anal retentive guy I am, I then went back and renamed/renumbered a file on the card with my computer to make the file number pass 10,000, and then renumbered it again to one number less than what it was supposed to be. It happened because I mixed up cards with my wife's 5D2 and my 7D.