Utilizing a new algorithm and deep learning technology, automatic Subject Detection can now recognize nine distinct subject types, ranging from humans to animals to airplanes to bicycles. When working in Auto-Area AF, these subjects will automatically be detected, focused on, and tracked to ensure sharp focus when the subject is moving across the frame. Eye-Detection AF, specifically, has been tuned for improved accuracy and refined recognition of eyes in the scene regardless of how small or large they are within the image frame.
The Z 9 also sees the debut of the 3D Tracking mode in a Nikon mirrorless camera. This popular focusing mode from Nikon's DSLRs pairs with subject detection capabilities to lock onto fast and erratically moving subjects that move parallel and perpendicular to the camera axis. Additionally, there are also three Dynamic-Area AF modes, with a range of focus area sizes, to suit capturing a broader variety of moving subject types.