Posted on November 15, 2018 By Phil Jones
JVC LX-NZ3 4K Laser DLP Projector Review – Advanced Calibration: CMS Calibration, Calibration Charts
Each picture mode offered independent CMS adjustments. In fact, the Natural and Cinema modes come with their CMS settings preadjusted from the factory.
Once the projector White Balance was fine-tuned, the CMS tracking was decent out of the box. Prior to CMS calibration, the Natural Picture mode (which I chose for SDR calibration), the color and CMS performance were good with just blue and magenta color points being notably off their targets.
Cinema (Best SDR) Mode Post-Calibration CIE 1976 Saturation Sweeps (target REC.709)
Cinema (Best SDR) Mode Pre-Calibration CIE 1976 Saturation Sweeps (target REC.709)
During CMS adjustment, I had to sacrifice achieving the widest color gamut in order to reproduce more accurate color at lower saturations. Increasing Color Enhancement setting under the MoviePro menu increased maximum color gamut but also results in overly saturated lower color tones. With Color Enhancement set to 0, after SDR CMS calibration, most colors below 80% saturation had a DeltaE below 2.
In the best 4K/HDR Mode, pre-calibration CMS measurements showed similar tracking errors to those found in SDR prior to calibration. Just like with the SDR mode, CMS tracked better after white balance was calibrated.
Since the JVC LX-NZ3 doesn’t have the color filter found on more expensive home theater projectors, it can’t reproduce 100% of DCI-P3. The JVC LX-NZ3 color gamut measured at 75.67% of DCI-P3 and 57% of BT.2020.
HDR (Best HDR) Mode Post-Calibration P3 Saturation 50% Sweeps inside BT.2020
HDR (Best HDR) Mode Pre-Calibration P3 Saturation 50% Sweeps inside BT.2020
To maximize the LX-NZ3’s overall color gamut and increase color saturation, when viewing HDR, I returned the Color Enhancement setting to its default of 12.
Using the CMS adjustments, I could only improve the lower color tones, so I focused on below 50% saturation. I was able to achieve a DeltaE of less than 2 for all the colors at 50% saturation except for green.
Overall, the DCI-P3 color performance could have been better but after calibration, the JVC LX-NZ3 still delivered a good HDR picture.
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