How do you delete photos from 913d camera?

To delete all pictures press the M button, the press the camera logo button twice. To delete last picture taken press the M button twice, then press the camera logo button. FYI After pressing the M button the first time you'll see a logo of trash can in the lower left corner of the screen. After the second time you press the M button(immediatly after the first), you'll notice the trash going into the can become solid.