- GEEK ALERT - GEEK ALERT - GEEK ALERT -
There are essentially three “grades” (also called “classes”) of broadcast monitors used in a professional TV production environment. The most rigorous functional requirements are for Grade 1 monitors, which are reference devices for high-grade technical quality evaluation of picture capture, post production, transmission and storage. Grade 1 displays reproduce the highly accurate colors required by the most demanding monitoring applications, including camera control, color grading and content evaluation. EBU Tech 3320 recommends that in a Grade 1 monitor, the black level should be adjustable to be below 0.1cd/m2 (nits), the full screen (sequential) contrast ratio should be above 1000:1, and the simultaneous (within-a-picture) contrast ratio should be above 200:1. Grade 1 monitors should present pictures at a D65 reference white, and Grade 1 and Grade 2 monitors should have no visible pixel defects.