We found the video quality to be generally lacking, and noticed that the camera didn't seem to use continuous auto focus to keep the video sharp as you move around. (androidcentral.com)
Camera 8 - megapixel camera with continuous auto focus, zero shutter lag, face detection, high dynamic range mode, burst mode, and more. (invictamenswatches.freeblog.biz)
The ZenFone 3 range use a second generation Laser Auto Focus system for enhanced range whilst Continuous Auto Focus will refocus the camera onto a track object every frame whilst recording video. (androidheadlines.com)