Optoma HD23 Home Theater Projector Review
Optoma HD23 Post Calibration Grayscale: User Mode
|Color Temp over IRE Range (Post calibration)|
Excellent results in User our “best” mode, also very good in Cinema – our “brightest” mode selection! Numbers are degree’s Kelvin.
Average gamma= 2.24
HD23 RGB Settings
|Cinema||User (on Film gamma)|
|Gain||R||(1) 4||(3) 4|
|G||(-1) 4||(0) 3|
|B||(0) -4||(1) -11|
Lumens at 100 IRE: 1117 713
So, how did we get such excellent numbers – and color accuracy? Easy, just plug in these settings into your HD23 projector. You may not notice any great differences, as the Optoma’s rather excellent right out of the box, especially for such a low cost projector.
HD23 Post Calibration settings:
Calibration settings for modes as shown. All other settings as on first page UNO.
Mike provided these additional notes, regarding the ability to calibrate different settings, limitations, etc.:
NOTE: Grayscale calibrated very well with both modes, but was really excellent in User mode. However, gamma was smoother in Cinema mode. I did both Cinema and User because I felt that skin tones looked better in User mode than they did in Cinema mode. The trade off is the big drop lumen output in User mode. Delta E was excellent with both modes as well. As was the case with the HD33, the CIE graph is better than a lot of DLP projectors that have undersaturated or yellowy-greens. It was particularly accurate in User mode, easily equal to more expensive projectors.
Bottom line, the HD23 produces very good color to start, but can have an even better image if calibrated. Even default settings should more than satisfy most owners. But, if you want the best possible (I’ll assume you aren’t paying hundreds for a calibration), try these settings.
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