- Subject tracking performance in AF-C (continuous-servo autofocus) autofocus mode with framing using the viewfinder has been improved.
Now equal to the D4 that received this some time ago and the D800 that also got this today.
- Frame output size has been changed from 95% to 100% when movie live view display is changed to "Information off" and an HDMI-compatible device is connected.
The latter one is a very important spec in video circles and I wasn't at all sure Nikon could actually do something about it. Should make a measurable boost to sales of the D600 as a potentially serious video rig. I know guys like to blather on about changing aperture during filming, but I have rarely heard a practical use for it. I don't own a D600 but when I'm running video I'm totally busy with focus and framing and if I need to adjust exposure I change ISO (or EV compensation). Changing exposure via aperture is odd unless I guess you want to alter DOF during a clip, but that is an unusual need as most clips you actually wouldn't want DOF to change.