Optoma GT720 Projector – Performance Posted on July 14, 2011 By Art Feierman 1. Optoma GT720 Projector Review - Optoma GT720 Projector Overview2. Optoma GT720 Projector Overview-23. Optoma GT720 Projector Review-3 - Optoma GT720 Projector Highlights - Specs for Optoma GT720 - Optoma GT720 Special Features - GT720 As a Gaming Projector4. Optoma GT720 Projector Review-4 - GT720 Lamp Life - Short Throw Lens - GT720 Projector - Audio5. Optoma GT720 Projector – Physical Tour - Optoma GT720 Projector - Appearance - GT720 Control Panel - GT720 Projector - Input/Output6. Optoma GT720 Projector – Physical Tour-2 - GT720 Menus - Optoma GT720 Remote Control - Optoma GT720 Lens Throw7. Optoma GT720 Projector – Physical Tour-3 - Lens Shift - Anamorphic Lens - Cinemascope8. Optoma GT720 Projector – Image Quality - Optoma GT720 Out of the Box Picture Quality - Optoma GT720 Projector - Flesh Tones - Optoma GT720 Black Levels & Shadow Detail9. Optoma GT720 Projector – Image Quality-2 - Optoma GT720 Black Levels & Shadow Detail-210. Optoma GT720 Projector – Image Quality-3 - Shadow Detail Performance - Black Level and Shadow Detail Performance: GT720 Projector - Bottom Line11. Optoma GT720 Projector – Image Quality-4 - Optoma GT720 - Overall Color & Picture Quality - Optoma GT720 Projector: Performance, HDTV and Sports12. Optoma GT720 Projector – Image Quality-5 - Optoma GT720 Projector: Bottom Line on HDTV Sports13. Optoma GT720 Projector – Performance - Lumen Output, Low Lamp, Bright mode: 14. Optoma GT720 Projector – Performance-2 - Optoma GT720 Sharpness15. Optoma GT720 Projector – Performance-3 - Optoma GT720: Bottom Line Sharpness - Light Leakage - Image Noise - Audible Noise16. Optoma GT720 Projector Calibration and Settings - Optoma GT720 Color Temperature - Optoma GT720 Basic Settings17. Optoma GT720 Projector Calibration and Settings-2 - Optoma GT720 Post Calibration Grayscale: Standard Mode - RGB Settings18. Optoma GT720 – Projector Screens - Optoma GT720 Projector Screen Recommendations19. Optoma GT720 – Competitors20. Optoma GT720 Projector – Warranty21. Optoma GT720 Projector Review Summary - Optoma GT720 Projector - The Bottom Line22. Optoma GT720 Projector Review Summary-2 - The Very Bottom Line on the GT720 projector: - Optoma GT720 Projector: Pros, Cons, and Typical Capabilities - Optoma GT720 Projector: Pros - Optoma GT720 Projector: Cons23. Optoma GameTime GT720 Projector Specifications In this section we consider the brightness, sharpness, and image noise of the Optoma GT720 home theater projector. Also considered are the physical attributes of light leakage and audible noise of the GT720. Optoma GT720 Brightness Lumen Output and Color Temp at 100 IRE: Cinema 1143 @ 6721 (with default BC of 6) Bright 2121 @ 6807 Presentation 1535 @ 7811 Classroom 1315 @ 6771 Blackboard 1969 @ 6692 Game 1640 @ 7643 Lumen Output, Low Lamp, Bright mode: GT720 Projector measures: 1941 lumens That represents a drop of only about 8.5%. Most projectors drop 20-30% in their eco-modes. It would seem the wise thing for most owners to run in eco-mode. That’s a small drop in exchange for longer lamp life, and Optoma says the GT720 will get 3000 hours at full power, but 5000 in eco. Brilliant Color plays a big role in the GT720. With Brilliant Color off, in fact, you have less than 1/3 the brightness of setting it to 10. As Optoma has even Cinema defaulting to 6, I figure they don’t expect you to use settings lower than that. Effect of Brilliant Color on lumen output (Bright mode): BC on 10 (default) 2121 BC on 6 (as in Cinema) 1442 BC on 0 631 Color Temp over IRE Range: Cinema 30 IRE 6221 50 IRE 6254 80 IRE 6648 100 IRE 6721 After Mike’s full calibration, placed in User (has to be there), with Brilliant Color set to 10, the Optoma GT720 measures a rather dazzling 1810 lumens (and a color temp of 6321K at full white). Below are the calibrated color temp results, a significant improvement over the default Cinema or User 3 above: Color Temp over IRE Range (Post calibration): 20 IRE 6603 30 IRE 6630 40 IRE 6642 50 IRE 6589 60 IRE 6828 70 IRE 6626 80 IRE 6426 90 IRE 6407 100 IRE 6321 Note that after Mike’s calibration, the brighter ranges got a bit warmer (lower color temps), the opposite of pre calibration. But, the amount of shift is a lot less. Still, the GT720 does end up with slightly pushed reds. For a gaming projector – no problem. For serious home theater, most others can do a little beter. Average GT720 gamma 2.09 1. Optoma GT720 Projector Review - Optoma GT720 Projector Overview2. Optoma GT720 Projector Overview-23. Optoma GT720 Projector Review-3 - Optoma GT720 Projector Highlights - Specs for Optoma GT720 - Optoma GT720 Special Features - GT720 As a Gaming Projector4. Optoma GT720 Projector Review-4 - GT720 Lamp Life - Short Throw Lens - GT720 Projector - Audio5. Optoma GT720 Projector – Physical Tour - Optoma GT720 Projector - Appearance - GT720 Control Panel - GT720 Projector - Input/Output6. Optoma GT720 Projector – Physical Tour-2 - GT720 Menus - Optoma GT720 Remote Control - Optoma GT720 Lens Throw7. Optoma GT720 Projector – Physical Tour-3 - Lens Shift - Anamorphic Lens - Cinemascope8. Optoma GT720 Projector – Image Quality - Optoma GT720 Out of the Box Picture Quality - Optoma GT720 Projector - Flesh Tones - Optoma GT720 Black Levels & Shadow Detail9. Optoma GT720 Projector – Image Quality-2 - Optoma GT720 Black Levels & Shadow Detail-210. Optoma GT720 Projector – Image Quality-3 - Shadow Detail Performance - Black Level and Shadow Detail Performance: GT720 Projector - Bottom Line11. Optoma GT720 Projector – Image Quality-4 - Optoma GT720 - Overall Color & Picture Quality - Optoma GT720 Projector: Performance, HDTV and Sports12. Optoma GT720 Projector – Image Quality-5 - Optoma GT720 Projector: Bottom Line on HDTV Sports13. Optoma GT720 Projector – Performance - Lumen Output, Low Lamp, Bright mode: 14. Optoma GT720 Projector – Performance-2 - Optoma GT720 Sharpness15. Optoma GT720 Projector – Performance-3 - Optoma GT720: Bottom Line Sharpness - Light Leakage - Image Noise - Audible Noise16. Optoma GT720 Projector Calibration and Settings - Optoma GT720 Color Temperature - Optoma GT720 Basic Settings17. Optoma GT720 Projector Calibration and Settings-2 - Optoma GT720 Post Calibration Grayscale: Standard Mode - RGB Settings18. Optoma GT720 – Projector Screens - Optoma GT720 Projector Screen Recommendations19. Optoma GT720 – Competitors20. Optoma GT720 Projector – Warranty21. Optoma GT720 Projector Review Summary - Optoma GT720 Projector - The Bottom Line22. Optoma GT720 Projector Review Summary-2 - The Very Bottom Line on the GT720 projector: - Optoma GT720 Projector: Pros, Cons, and Typical Capabilities - Optoma GT720 Projector: Pros - Optoma GT720 Projector: Cons23. Optoma GameTime GT720 Projector Specifications Optoma GT720 Projector – Image Quality-5 Optoma GT720 Projector – Performance-2