Posted on August 30, 2018 By Eric Pfoutz
JVC DLA-RS440 and X590U 4K Projector Review – Advanced Calibration: CMS Calibration, Calibration Charts
JVC DLA-RS440 User 1 Mode Pre-Calibration CIE 1976 Saturation Sweeps (target REC.709)
JVC DLA-RS440 User 1 Mode Post-Calibration CIE 1976 Saturation Sweeps (target REC.709)
As I mentioned on the calibration page CMS pre-calibration is quite good, besting most DLP post-calibration. Unlike most DLP’s the mid saturation (20%, 40%, 60%, 80%) points on the RS440U are near on the money. Calibrating CMS (color space set to auto) was a snap and yielded near a near perfect REC.709. One note however, JVC includes a 4th adjustment called Axis Position and I could not get it to work but it’s not necessary at all, so no worries.
JVC DLA-RS440 User 2 Mode Pre-Calibration CIE 1976 Saturation Sweeps (target REC.709)
JVC DLA-RS440 User 2 Mode Post-Calibration CIE 1976 Saturation Sweeps (target REC.709)
CMS for my Brightest calibration is actually a fraction better than my Best (dark room). I believe this is due to the lamp being driven at its normal (designed) voltage. Anytime you drive a lamp lower that its designed for it can cause small fluctuations in accuracy. (You ever seen a lamp flicker at lower settings? I have). Only small adjustments (no more than 4 clicks) were necessary to obtain outstanding color accuracy across the entire saturation range.
JVC DLA-RS440 HDR Mode Pre-Calibration P3 Saturation Sweeps inside BT.2020
JVC DLA-RS440 HDR Mode Post-Calibration P3 Saturation Sweeps inside BT.2020
While CMS with SDR content was stellar both pre and post calibration, hitting the P3 color gamut with HDR did not perform quite as well. I was able to get very good performance across all saturation points with blue and magenta. Red had problems making it out to 100% saturation, stopping around 90%. Green also didn’t quite make it to 100% but the real issue was with its hue turning towards yellow at its outer saturation point. Cyan was a little under saturated across its range except for 40% being over saturated. Yellow had issues with hue. Each mid saturation point would jump from plus-blue to plus-green in a ping pong fashion. (example 40% greenish, 60% reddish, 80% greenish).
Now putting this performance all in context with other (mostly DLP) projectors it still goes to the head of the class by a long shot, only being bested by Epson’s 5040/6040 & Laser LS15000. Overall I was very pleased with the post-calibration HDR color performance on the RS440U.
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