Canon EOS-1D X Mark III EOS-1DX Mark III Advanced User Guide - Page 845

C.Fn5 Viewfinder info. during exp. For viewfinder shooting, you can set whether to display shooting information in the viewfinder during exposure. OFF: Disable ON: Enable Shooting information remains displayed in the viewfinder during exposure. Useful when you want to check exposure, number of shots available, and other information during continuous shooting. Caution Not applied (even if [Enable] is set) in bulb shooting mode. LCD panel illumi. during Bulb You can set LCD panel operation in response to bulb exposures that you shoot while it is illuminated-either to remain lit or turn off when exposure begins, or to illuminate briefly when the < > button is pressed. OFF: Off When bulb exposures begin, LCD panel illumination turns off. Pressing the < during bulb exposures illuminates the LCD panel for approx. 6 sec. > button ON: On during Bulb LCD panel illumination remains on until bulb exposures end. Useful when you shoot bulb exposures in low light and want to check the exposure time. 845