I wonder if an i1d3 colorimeter could be used to measure the input lag of a digital display with relatively good precision. It would be so much easier and hopefully more reliable than using an analog CRT and a camera with low shutter speed to take a lot of pictures and compare the clocks on them... I guess it would not be hard to extend the existing "refresh rate calibration" step with this calculation and print out this number as well. Can I ask for this feature if it's possible and easy to implement?