The spyder is designed to cut out outside light when it calibrating. The filter screen will allow light to leak in. If you intend to do your processing with the filter screen on, i suggest you calibrate the monitor with the filter screen on, at night, and with all the lights off, to minimize stray light.
forgive my ignorance...
Just hoping that someone would enligtening me n the difference between the 3 versions of sypders, and eye-one display.
Had been thinking of calibrating my monitors for years, now i'm finally working and able to afford one.
anyone of you are using a Spyder Pro currently? Do we have to cover the monitor or switch off the lights before we calibrate the monitor? And which profile settings is the Spyder Pro using as a reference? Thanks!