I just installed smallHD's OS3 firmware for all smallHD monitors including the Focus. New is auto calibration of the monitor with xrite's puck, ability to set white point, customization of false color ranges and color, spot metering in luma waveform and ability to accept 4k video up to 30 fps rather than down resize to 1080 . I noticed a great upgrade in that the battery condition is now displayed as a % rather than the voltage . I haven't had a chance to try out all the new features so no comment on the implementation of these new features.