Upload & Sell: Off
Man I hate to ask this "dumb" question, but I'm wondering.......is there any downside to swapping around CF cards between two Canon bodies (5DII and 7D) as long as I format the card(s)?....or do most folks make sure they use the same card(s) in each body all the time?
I'm swapping 8G cards between 400D, 40D, 1D Mk2 N and 1D Mk3 without any formatting and I have no problems so far. Even displaying photos from other cameras in one of the cameras works.
I haven't formatted a CF card for a long time. But what I usually do is that I move the images from the card to my disk and the card without any leftovers.
"Moving images" is effectively a copy of that image to the new location and erase of that image from the old.
As others have mentioned, formatting a card puts less wear on the CF card than erasing each image.
Ummm, not quite. Yes, move = copy + delete. But when you delete a file, you don't overwrite it. Erasing just replaces the first character of the file by nonstandard character, but the file is kept intact. This is how you can "unerase" the files. Next, when you erase file, part of its allocation table is also marked "unused". And that's about all.
Quick format is nothing else than wiping the file allocation tables and deleting all the files, just about the same operation I do when I "move" files from the card to the computer.