Image Modes
E - Erasing your images from Camera
Bad hair day? Thumb over the lens? Whatever the reason for wanting to erase a picture, you can instantly clear one or all of them.
1 To enable the “clear” feature, repeatedly press the M select button until the 
(clear last
image) or 
(clear all images) icon is displayed on the image LCD Panel.
2 Press the Shutter button twice to erase your selection.
or
Dream tip: If you don’t press the Shutter twice within 5 seconds, the erase function is aborted.