Hello Graeme, Would it be possible, in a future release, to include an option for "manual" measurement collection? I now have a PR-704 spectroradiometer I can use to collect screen colorimetry but it is too old for having any kind of API I could call from a controlling application. I can use it to make any kind of measurements off the display or emissive sources, but, in order to use it with dispcal, I would have to have some kind of text input capabilities. I know this would take forever and ever to manually enter XYZ values for every measurements. But this is an option I would like to explore. Best / Roger