Canon EOS-1D C EOS 1D X Instruction Manual - Page 349

85: Custom Controls : Start movie recording (when k set) With [LV z/k set.] set to [Movies], pressing the button assigned with this function will start the movie shooting immediately. To stop the movie shooting, press the button again. : Switch to Custom shooting mode When the shooting mode is not , , or , you can press the button to switch to the registered Custom shooting mode (p.354). If multiple Custom shooting modes have been registered, each time you press the button, it will switch the shooting mode from w1 → w2 → w3 → current shooting mode. However, during movie shooting, pressing the button will not switch to the Custom shooting modes. (Movie shooting will start.) : Image replay Press to play back images. : Magnify/Reduce (press SET, turn ) Press to magnify the images recorded on the card. See page 257 for the operation procedure. You can magnify the Live View image during Live View shooting and movie shooting when focusing in Live Mode, Quick Mode, or with manual focus (p.216, 220). : No function (disabled) Use this setting when you do not want to assign any function to the button. 349