Canon EOS-1Dx Mark II User Manual - Page 123

3 Customizing AF Functions AI Servo 2nd image priority With AI Servo AF for continuous shooting, you can preset the AF operation characteristics and shutter-release timing for all shots to be taken after the first during continuous shooting. 0: Equal priority Equal priority is given to focusing and continuous shooting speed. In low light or with low-contrast subjects, shooting speed may slow down. -2/-1: Shooting speed priority Priority is given to the continuous shooting speed instead of achieving focus. With -2, decrease of continuous shooting speed can be better prevented than with -1. +2/+1: Focus priority Priority is given to achieving focus instead of the continuous shooting speed. The picture will not be taken until focus is achieved. Although focus can be achieved easier in low-light conditions with +2 than with +1, continuous shooting speed may decrease. Under shooting conditions which activate flicker reduction (p.198), even if [Shooting speed priority]: [-1] or [-2] is set, the continuous shooting speed may become slower or the shooting interval may become irregular. If focus cannot be achieved in low-light conditions when [0: Equal priority] is set, setting [Focus priority]: [+1] or [+2] may give better results. 123