Canon's new Hybrid CMOS AF III uses sensor-based phase detection points for increased focus speed and accuracy in live view. Canon claims that the performance of Hybrid CMOS III should be close to that of Dual Pixel AF (found in the EOS 70D and 7D II). With the mirror down, the Rebels T6i uses the same 19-point phase detection AF as the 70D, which represents a vast improvement over the 9-point AF system in the T5i. The ISO range remains the same as its predecessor, 100-12800, expandable up to 25600.