Optoma GT720 Projector Calibration and Settings Posted on July 8, 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 We calibrate every home theater that we review. The Optoma GT720 received the usual treatment. I “played” with the GT720 for a couple of days, passed it off to Mike for calibration and measurements. 24 hours later, I’m back to watching it. Ours is a pretty standard calibration, there’s always more done by some of the “hi-end” calibrators. Our calibrations, including the Optoma GT720, are normally limited to a grayscale calibration, along with brightness, contrast, color saturation, etc. Only in very special circumstances will we calibrate the individual colors, in which case we discuss why. Optoma GT720 Color TemperatureBefore we provide our settings, lets see what we started out with: Pre calibration, these are the color temperatures over the grayscale range: Color Temp over IRE Range (Best Mode, Pre calibration): Standard 30 IRE 8172 50 IRE 8142 80 IRE 7685 100 IRE 7718 Standard offered the best looking color, but produced a very cool (bluish) image. Lumen Output and Color Temp at 100 IRE (mid zoom): Brightest 1653 @ 7232 Standard 1529 @ 7718 Theater 1296 @ 7891 Dark Room 839 @ 7993 (By default, Dark Room is on Eco lamp. With Eco off, Dark Room has same lumens as Standard) User 1 1108 @ 10280 User 2 1108 @ 10277 NOTE: There are three other color temps in addition to Mid, but Mid gives the highest lumen output. GT720 Brightness (Eco Lamp On, Brightest mode) 1306 lumens That represents a drop from 1653 lumens at full lamp power. The math says that’s a drop of an almost perfect 21%. Most projectors drop 20 to 25% when going to their eco – low lamp, power mode. Optoma GT720 Basic Settings Settings for measurements (default values are in parenthesis): Cinema Bright Presentation Classroom Blackboard Game Contrast -46 -46 -47 -46 -44 -47 Brightness -50 -50 -49 -50 -50 -50 Color Temp (Warm) (Warm) (Medium) (Warm) (Warm) (N/A) Degamma (Film) (Video) (Graphics) (Film) (Film) (Std.) Brilliant Color -6 -10 -10 -8 -10 -10 In addition to calibrating Red Green and Blue for a correct grayscale balance (6500K), there are a number of other settings that come into play. Typically Contrast and Brightness (white balance and black balance), need to be done first. Color saturation and gamma also need adjustment. 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 – Performance-3 Optoma GT720 Projector Calibration and Settings-2