Measurements taken at Mid-Zoom in Eco lamp.
Average Gamma Pre-Calibration: 2.33
Average Gamma Post-Calibration: 2.40 @ 1135 Lumens
My target for a dark room gamma is 2.4 and with past Epson’s setting the gamma to -1 usually got me in the ballpark, with the 2150 however leaving gamma at its default of ‘0’ garnered a 2.33 average so that is where I left it. After calibration I was able to achieve my target of 2.4 average.
Custom color temp for Natural mode w/6500K starting point.