Canon EOS 5DS R Instruction Manual - Page 111

3 Selecting AI Servo AF CharacteristicsN Case 3: Instantly focus on subjects suddenly entering AF points Default settings • Tracking sensitivity: Responsive: +1 • Accel./decel. tracking: +1 • AF pt auto switching: 0 Once an AF point starts tracking the subject, this setting enables the camera to consecutively focus on subjects at different distances. If a new subject appears in front of the target subject, the camera will start focusing on the new subject. Also effective when you want to always focus on the closest subject. If you want to quickly focus on a subject appearing suddenly, setting [Tracking sensitivity] to [+2] may give better results (p.114). Case 4: For subjects that accelerate or decelerate quickly Geared for tracking moving subjects whose speed can change dramatically and suddenly. Effective for subjects having sudden movements, sudden acceleration, sudden deceleration, or sudden stops. Default settings • Tracking sensitivity: 0 • Accel./decel. tracking: +1 • AF pt auto switching: 0 If the subject is in motion, and prone to sudden, dramatic changes in speed, setting [Accel./decel. tracking] to [+2] may give better results (p.115). 111