Nikon D5 100th Anniversary Edition User Manual - Page 352

a2: AF-S Priority Selection G button ➜ A Custom Settings menu When AF-S is selected for viewfinder photography (0 101), this option controls whether photographs can be taken only when the camera is in focus (focus priority) or whenever the shutter-release button is pressed (release priority). Option G Release F Focus Description Photos can be taken whenever the shutter-release button is pressed. Photos can only be taken when the in-focus indicator (I) is displayed. Regardless of the option selected, if the in-focus indicator (I) is displayed when AF-S is selected for autofocus mode, focus will lock while the shutter-release button is pressed halfway. Focus lock continues until the shutter is released. a3: Focus Tracking with Lock-On G button ➜ A Custom Settings menu This option controls how autofocus adjusts to changes in the distance to the subject when AF-C is selected during viewfinder photography (0 101). ❚❚ Blocked Shot AF Response Choose how quickly focus responds when something passes between the subject and the camera. Choose from values between 5 (Delayed) and 1 (Quick). The higher the value, the slower the response and the less likely you are to lose focus on your original subject. The lower the value, the quicker the response and the easier it is to shift focus to objects crossing your field of view. Note that 2 and 1 (Quick) are equivalent to 3 when 3D-tracking or U auto-area AF is selected for AF-area mode (0 104). 328