AzPicLady Loc: Behind the camera!

I don't always want raw images, so my normal set is to large jpegs. However, sometimes I do want a raw image. Can I switch in the middle?

I was out shooting one day and was running out of card, so I decided to switch off the raw. I lost all of the Raw images already on the card.

I have a Canon 1D Mark IV and a 16 g lexar class 10 card. I'm going on a trip next month and I'd like this resolved before I go.

EstherP

I don't know your camera, but just had a look at the manual (found on-line):
If I understand the manual right, your camera takes two memory cards: Have you checked the second card to see if the raw files are there?
See pages 57, 59, 60.
EstherP

Coolcameragirl Loc: Bradenton, FL

I have a Canon Mark II and can switch back and forth on the same card. In fact, I was at the New England Camera Club Conference this past weekend and got a free cleaning. I usually shoot Jpeg + raw but the person who did the cleaning must have inadvertantly turned off the raw. When I downloaded my card, half my photos were raw + jpeg and the other half was just jpeg.

Armadillo Loc: Ventura, CA

I don't know your camera, either, so this is just a guess. Your camera should not care which format it records the captured images in, the card should not care. The only device that should care is the computer device trying to display the files, or listings of the files on the card.

This is a very simple test to prove the culprit in your troubles.
Take your 10Gb card and in camera re-format the card so everything is set back to "0".
Find a simple subject for testing.
Set the camera for RAW and take two exposures.
Note on the preview LCD panel if the captured images appear on screen.
Use the preview button to scan between the two images.
If the images appear there is nothing wrong with the RAW capture, or reading the saved images in RAW.

Set the camera to High Res ".jpg" and take two more exposures of a similar object.
After each exposure note the preview screen and view the .jpg image.
If the .jpg images appear after each exposure there is nothing wrong with the camera saving and reviewing .jpg images.

In a comfortable dark location use the camera LCD panel to scan through all the captured images, write down the file names of each images saved, both the RAW and .jpg images. If you can see both the RAW and .jpg images on the LCD panel there is nothing wrong with the camera, memory card, or your use of the camera.

However you transfer captured exposures from camera to computer device transfer all the images into a location on your hard drive.

This is where you may be loosing your captured images between RAW and ".jpg". Most computer devices cannot read RAW file formats. They need a program to convert the RAW format into a file type compatible to the computer.

Check your camera user manual and install CD's for applications that can import RAW and convert to .jpg format.

Michael G

EstherP

Just a quick comment: Don't take the card that you images might still be on - re-formatting that card will make the images disappear for certain!
EstherP

romanticf16 Loc: Commerce Twp, MI

Memory cards are so inexpensive . Buy 2 or 4GB cards and have one for jpegs and one for RAW, switch them as needed. You can remove a card and put it back and continue recording on it, yes?

SharpShooter Loc: NorCal

Lady, I thought the lV had dual card slots? No? If so, you could record both. Or both on one card. Won't hurt to switch back and forth though. SS

Mickey88 Loc: Central Florida

is it possible that when you switched the camera created a new folder for jpeg.. maybe you only downloaded the one folder

JPL

Just read your camera manual, it is all there, you can learn a lot by reading the instructions.

Mickey88 Loc: Central Florida

they could still be recovered, unless more pics are taken and they are overwritten

Fergus Loc: Westfield,IN

Have you been able to switch back and forth then read both formats on your computer before? If not, I agree with Armadillo; you don't have a raw reader on you computer or you're not directing your files to it.

Tisdale

I do not know Canon Cameras...been shooting Nikon since 1965 ---- Nikon DSLRs allow the user to shoot raw and jpg together on the same shot. I would be surprised if Canon did not offer the same setup.

dusty3d Loc: South Florida

solution is to have more than 1 memory card and also a back up battery. But get a good memory card, not a cheap one.

Armadillo Loc: Ventura, CA

Canon EOS cameras will allow a multitude of save options for each capture. High, Medium, Low quality (.jpg), as well as RAW, and RAW + High Quality. The selection is made from the camera Menu for Quality. The memory card does not care what format is saved.

Michael G

Wall-E Loc: Phoenix, AZ

Did any of the 12 responses help?