Canon RF800mm F11 IS STM RF600mm F11 IS STM RF800mm F11 IS STM Instructions - Page 11

4. Setting the Focusing Distance Range 5. Control Ring The control ring can be assigned the functions that are commonly used with cameras, such as shutter speed and ISO speed. Focusing distance range selector switch You can set the focusing distance range with a switch. By setting a suitable focusing distance range, the actual autofocusing time will be shorter. Focusing distance range Lens RF600mm F11 IS STM RF800mm F11 IS STM Range Full (4.5m-∞) 12m-∞ Full (6m-∞) 20m-∞ Control ring The click action of the control ring allows you to have a sense of how much it is being turned. Please refer to the camera's instructions for details on how to use the control ring. zzThere are cases in which the sound of control ring operations may be recorded when shooting movies. zzThe clicking sensation of the control ring can be removed by the Canon Service Center. (chargeable) ENG-10