[timmorris]

It seems that I've at least learned something in the last year then. Isn't 2.5 referred to as video gamma as traditionally that was what the phosphors used on CRTs produced before the display device's colour decoder (if properly set up) electronically adjusted the guns to produce 2.2? I recently learned that in the age of the CRT virtually all phosphors were the same, but with plasma manufacturers trying harder to differentiate themselves and improve contrast ratio amongst other things they are each using phosphors with different responses. Note I mean glass manufacturers, not people who attach their electronics to others' displays.

Tim