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The following examples explain the action of this button.
Example 1. Suppose that you have a camera back with a PCMCIA card capable of storing 26 images, and that you have taken ten pictures and then deleted one. If you recover the PCMCIA card, you will have all ten images — the original nine images will still be there, and you will have recovered the tenth image.
Example 2. Suppose that you have a camera back with a PCMCIA card capable of storing 26 images, and that you have taken ten pictures, have deleted one, and taken another picture. In this case, the newest picture overwrites the deleted image. If you recover the hard disk, you will obtain 10 images, nine original images, plus the latest picture you have taken. The picture you deleted that was overwritten with a new image cannot be recovered.
Example 3. Suppose that you have filled the PCMCIA card with images, and erased all images. If you recover the disk with this button before you take any additional pictures you will have recovered all of the images you erased.
Example 4. Suppose you have a PCMCIA card capable of holding 26 images. Over time you have taken pictures, erased the disk, taken more pictures, deleted some, taken additional pictures, and so on — never having more than 20 images on the PCMCIA card. As you take new pictures while there are still active images on the PCMCIA card, the new images are written into an empty location on the PCMCIA card; deleted images that are overwritten become unrecover- able. Suppose you now delete all images and take three new pictures; the three new images will overwrite three images on the PCMCIA card. (The exact location of the overwritten
