Canon EOS Rebel T6s EF-S 18-135mm IS STM Lens Kit 手册

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页码 430
3
 Custom Function SettingsK
356
C.Fn-8
VF display illumination
You can set whether or not the AF points in the viewfinder will light up 
in red when focus is achieved.
0:  Auto
The AF points automatically light up in red under low light.
1:  Enable
The AF points light up in red regardless of the ambient light level.
2:  Disable
The AF points do not light up in red.
C.Fn-9
Mirror lockup
0: Disable
1: Enable
Prevents camera shake due to camera vibrations in the camera 
caused by the reflex mirror action (mirror shock), when shooting 
with super telephoto lenses or close-ups (macro photography). 
See page 173 for the mirror lockup procedure.
When AI Servo AF is set, there is no illumination in red even when focus is 
achieved.
When you press the <S> or <B> button, the AF points will be 
illuminated in red regardless of this setting.
The aspect ratio lines (p.130), and the electronic level, grid, and flicker 
detection set with [52:Viewfinder display] will also light up in red.