Canon 7D Formatting Your Memory Card


The fi rst thing to do when you have a new card is format it. When you format a card, the camera creates a layout for the images to be written more easily and saved properly. Formatting also “cleans” your card, making it a blank slate to write new images to, and is the recommended way of deleting data from the card. You should always format the card within the camera itself, because formatting it from the computer could render the card useless. You also want to be certain that your images and fi les on the card have been safely transferred over to another source before formatting your card.

I try to re-format my card before each use and after I have uploaded the images to my hard drive. I also format my card if it’s brand-new or has been used in a different camera. I like to start with a fresh card each time I shoot to simplify my workfl ow when I’m taking a lot of photos, so I can keep them organized and separated from my other images.



  1. Insert the memory card into your camera.
  2. Press the Menu button, and navigate to the fi rst setup menu tab (the fifth from the right).
  3. Rotate the Quick Control dial on the back of the camera to highlight the Format option, and press Set (A).
  4. The default selection for the Format screen is Cancel, just in case you didn’t really want to format the card (B). Turn the Quick Control dial to highlight OK. The screen will warn you that you will lose any data by formatting your card, so make sure that you have saved any images that you want onto your computeror elsewhere before formatting.
  5. Press the Set button to fi nalize the formatting of the card.