Factory calibration, as the term suggests, is the calibration process conducted in the factory itself, before each individual monitor ships. What’s calibrated depends on the manufacturer, but meticulous calibration requires doing so unit by unit and includes brightness, gamma, color temperature, and uniformity on the panel, and most importantly, preset color modes or spaces such as sRGB, Adobe RGB, and DCI-P3. These factory presets are stored in dedicated memory and can only be accessed by equipment in the factory and by the manufacturer personnel. Only when this is executed with carefully calibrated equipment and well-trained team members can factory calibration be conducted in a stringent enough manner to count as genuinely professional.