X-T1 firmware 4.00 brings zone/wide focus tracking May 11, 2015 Why Fujifilm released the X-T1 without proper zone and wide-focus tracking is a mystery to me. Why Fujifilm fans pardoned them for it is a further mystery. Anyway, finally. Full press release at DPReview. 1. A new auto focus system with Zone and Wide/Tracking modes for effortless capture of moving subjects - The auto focus system complements the fast and accurate single-point auto focus system with new Zone and Wide/Tracking modes, which use 77 autofocus points across a wider area to substantially improve the camera’s ability to track and capture moving subjects.The Zone mode allows users to choose a 3x3, 3x5 or 5x5 zone from the 77-point auto focus area. When combined with the AF-C continuous focusing mode, the camera continues tracking a subject in the selected zone. The 3x3 and 3x5 zones at the center, in particular, offer extra-fast focusing with the use of the built-in phase detection pixels.In the Wide/Tracking mode, the camera displays the area in focus, identified automatically out of the 77-point auto focus area (Wide in the AF-S mode) and tracks the focus area’s subject across the entire 77-point AF area (Tracking in the AF-C mode). This makes it possible to maintain focus on a subject that moves vertically, horizontally, and back and forth.