Projector Reviews – General Performance-7 Posted on October 14, 2006 By Art Feierman 1. Optoma HD70 Home Theater Projector Review - Overview2. Optoma HD70 Projector: Physical Tour3. Optoma HD70 Projector Review – Image Quality4. Optoma HD70 Projector Review – Image Quality-25. Optoma HD70 Projector Review – Image Quality-36. Optoma HD70 Projector Review – Image Quality-4 - Optoma_HD707. Oproma HD70 – General Performance - Optoma HD70 Projector Menus8. Projector Reviews – General Performance-29. Projector Reviews – General Performance-3 - HD70 User Memory Settings - HD70 Backlit Remote Control10. Projector Reviews – General Performance-4 - HD70 Lens Throw and Lens Shift - SDE and Rainbow Effect - HD70 Light Leakage - HD70 Audible Noise Levels11. Projector Reviews – General Performance-5 - HD70 Projector Brightness12. Projector Reviews – General Performance-6 - Optoma HD70 Lamp Life and Replacement - HD70 Projector Screen Recommendations13. Projector Reviews – General Performance-7 - Optoma HD70 Projector Calibration - Image Noise14. Optoma HD70 Projector Review – Warranty15. Optoma HD70 Home Theater Projector Review: Summary, Pros, Cons16. Optoma HD70 Home Theater Projector Review: Summary, Pros, Cons-2 - HD70 Pros - HD70 Cons - HD70 Typical Capabilities - Optoma HD70 Summary Optoma HD70 Projector CalibrationFirst of all, out of the box color was very good to start. The color temperature in Cinema mode was a little warm (reddish), with full white measuring 6408K, very close to the ideal 6500K. As I measured grays, the color temperature dropped with the lower brightness gray, with 80IRE 6214K 50IRE 6204K 30IRE 5979K The default color temperature setting is 1. I had better luck, (slightly cooler temperatures) with the setting at 2. The numbers are impressive 100IRE 6633K 80IRE 6323K 50IRE 6391K 30IRE 6158K After calibration, the numbers got about as good as anyone could hope for: 100IRE 6575 80IRE 6544 50IRE 6489 30IRE 6335 To get those numbers the projector was still in Cinema mode, low power, defaults for BrilliantColor and TrueVivid. The individual RGB settings were: Gain: Red 6, Green 5, Blue 6 Bias: Red -14, Green -12, Blue -13 (Those are the settings that yielded the 363 lumens.) The primary change I made in the Bright mode adjustment that yielded the 1424 lumens mentioned above, was increasing the Blue Gain to 13. This because in Bright mode the color temperature was still down in the 6500K and below range, whereas for HDTV and bright viewing color temperatures up to about 8000K provide good results. (Note, the Mitsubishi too, was down in the 6800K range, also rather warm for HDTV and sports viewing. Image NoiseThe Optoma HD70 did very well here. I ran the HQV disk on it, and it looked very good on the noise tests. The same was true for movie watching. Sure, if you get close enough to the screen you can see noise easily (as with almost any projector), but at normal seating distances when some is visible (on the right type of content, it is very minor and not distracting. No problem here! 1. Optoma HD70 Home Theater Projector Review - Overview2. Optoma HD70 Projector: Physical Tour3. Optoma HD70 Projector Review – Image Quality4. Optoma HD70 Projector Review – Image Quality-25. Optoma HD70 Projector Review – Image Quality-36. Optoma HD70 Projector Review – Image Quality-4 - Optoma_HD707. Oproma HD70 – General Performance - Optoma HD70 Projector Menus8. Projector Reviews – General Performance-29. Projector Reviews – General Performance-3 - HD70 User Memory Settings - HD70 Backlit Remote Control10. Projector Reviews – General Performance-4 - HD70 Lens Throw and Lens Shift - SDE and Rainbow Effect - HD70 Light Leakage - HD70 Audible Noise Levels11. Projector Reviews – General Performance-5 - HD70 Projector Brightness12. Projector Reviews – General Performance-6 - Optoma HD70 Lamp Life and Replacement - HD70 Projector Screen Recommendations13. Projector Reviews – General Performance-7 - Optoma HD70 Projector Calibration - Image Noise14. Optoma HD70 Projector Review – Warranty15. Optoma HD70 Home Theater Projector Review: Summary, Pros, Cons16. Optoma HD70 Home Theater Projector Review: Summary, Pros, Cons-2 - HD70 Pros - HD70 Cons - HD70 Typical Capabilities - Optoma HD70 Summary Projector Reviews – General Performance-6 Optoma HD70 Projector Review – Warranty