5D Mark III Image Erasing Issue

I currently use the compact flash card to record RAW images, and the SD card to record JPeg images. I discovered that I although I have erased many images on my camera, I later found that only the unwanted RAW images have been erased. The unwanted JPeg images remain on the SD card. Hopefully I am doing something wrong, but after checking the manual I cannot find how to correct this issue. Is there a way to erase both the RAW and JPeg at the same time when the images are recorded to separate cards?

It only erases from the card that you set as playback. No way to ease both cards unless you switch it and do again.

I've never been able to record jpeg and RAW on seperate cards. With only one card in the camera at a time that would be a good trick if I could do it. I assume you have a swish new camera that allows 2 cards at any one time? Not sure why thats needed though.

Lowner wrote in post #14677583
I've never been able to record jpeg and RAW on seperate cards. With only one card in the camera at a time that would be a good trick if I could do it. I assume you have a swish new camera that allows 2 cards at any one time? Not sure why thats needed though.

Yes he does. He titled his post with 5D Mark III which has this feature like the 1D Mark IV.

It may be needed if you need quick access to JPEG on location to email or display on a small less powerfully computer quickly and then want RAW for more serious work back at your desk. Some jobs almost require it. I'm shooting a road race in a few weeks that will take advantage of this in just that way.

sonnyc wrote in post #14676921
It only erases from the card that you set as playback. No way to ease both cards unless you switch it and do again.

Yes, go into your quick menu and select either slot 1 (CF) or slot 2 (SD) before you go to the delete menu. Which ever one you have selected will be deleted. To delete everything it's a two step process.

The ability to use two cards at once sounds like a solution to a problem that never existed.

Lowner wrote in post #14677931
The ability to use two cards at once sounds like a solution to a problem that never existed.

You may not have a need for it, but there are many advantages to this. One of the big reasons that I like about the 1D series and the 5D3 regarding CF+SD is now neutered with the 1DX though, eye-fi won't be very useful anymore....

Reasons for 2 slots:
1) More recording capacity, fill up one, and it switches to #2

2) Backup while shooting, send both cards the raw or raw+JPG

3) Give your processing department the images quickly, while keeping a copy yourself, raw to one file, LJPG to the other, give them a card, pop a new one in

4) Eyefi in the SD slot wirelessly transmitting your files over to your laptop while you shoot, this is a feature I will miss on the 1Dx

5) Self-preservation - when you record to both slots as you snap that nice lookin' lady at the other end of the bar, and her boyfriend comes over and tells you to delete the image, you can, but still have the image on the other card. Or when you are doing a bit of PI work, and the subject material gets in your face and threatens your life if you don't delete the images of them makin' out at poolside...

Once you use it in any of these capacities, when you go back to a camera with one slot, you most likely will miss the feature.

I love all these reasons!

TeamSpeed wrote in post #14678086
You may not have a need for it, but there are many advantages to this. One of the big reasons that I like about the 1D series and the 5D3 regarding CF+SD is now neutered with the 1DX though, eye-fi won't be very useful anymore....

Reasons for 2 slots:
1) More recording capacity, fill up one, and it switches to #2

2) Backup while shooting, send both cards the raw or raw+JPG

3) Give your processing department the images quickly, while keeping a copy yourself, raw to one file, LJPG to the other, give them a card, pop a new one in

4) Eyefi in the SD slot wirelessly transmitting your files over to your laptop while you shoot, this is a feature I will miss on the 1Dx

5) Self-preservation - when you record to both slots as you snap that nice lookin' lady at the other end of the bar, and her boyfriend comes over and tells you to delete the image, you can, but still have the image on the other card. Or when you are doing a bit of PI work, and the subject material gets in your face and threatens your life if you don't delete the images of them makin' out at poolside...

Once you use it in any of these capacities, when you go back to a camera with one slot, you most likely will miss the feature.

Lowner wrote in post #14677931
The ability to use two cards at once sounds like a solution to a problem that never existed.

I think that's a pretty bold statement considering both Nikon and Canon have had this feature on their top of the line bodies for a few generations in one way or another. Just because you can't understand how you might utilize it doesn't mean there are not others out there who take advantage of it.

As for me. I really want RAW files for my archive but when in the field being able to pop out a SD card with JPEGs directly into my PC or iPad with a camera kit and then email them quickly is just a great feature to have. I'm not a professional paparazzi but I bet those guys use it a lot as a way to scoop the competition. They don't have time to run back to the office and unload the CF card to computer.

IMHO it's a very good thing that you are not able to erase both at once. That would seriously diminish the value of shooting to two cards as an automatic backup.