Input Screen Aspect Ratio Screen Size Screen Gain (projectors only) Projector Brightness (projectors only) Horizontal Resolution Vertical Resolution Actual Seating Distance (first row) Actual Seating Distance (back row) Anamorphic (horizontal expansion) front projector lens? Screen Dimensions Screen Diagonal Screen Width Screen Height Pixel Width on screen (dot pitch) Pixel Height on screen (dot pitch) Pixel density Horizontal (important for PC monitors) Pixel density Vertical (important for PC monitors) Total Number of Pixels Viewing Distances and Brightness THX Longest Allowable viewing distance2 SMPTE Longest Recommended viewing distance3 THX Longest Recommended viewing distance2 Shortest recommended viewing distance5 Visual Acuity "ideal" viewing distance4 Visual Acuity Eyesight Compensation (Eyesight of viewer)6 1.78 110 1.1 1500 1920 1080 7.0 20.0 No 126.2 110.0 61.9 0.057 0.057 17.5 17.5 2,073,600 Units :1 inches wide gain ANSI lumens pixels pixels feet feet inches inches inches inches inches pixel/inch pixel/inch pixels 10.5 feet 9.2 feet 5.2 feet 320.6 279.4 157.2 0.15 0.15 6.9 6.9 2.07 238.2 inches 205.3 inches 169.3 inches 19.9 feet 17.1 feet 14.1 feet 605.1 centimeters 521.4 centimeters 430.0 centimeters 6.05 meters 5.21 meters 4.30 meters Notes about First Row Seating Distances based on the parameter entered. First row is close enough to the screen to meet this specification. First row is close enough to the screen to meet this specification. First row is close enough to the screen to meet this specification. 78.5 inches 197.0 inches 20 / 20 6.5 feet 16.4 feet 1.0 199.5 centimeters 500.3 centimeters 2.00 meters 5.00 meters First row is far enough away from the screen to meet this specification. First row is close enough to the screen that the benefits of a higher resolution display might be noticable. Field of View Width (first row center) Field of View Width back row center) 66.4 degrees 25.8 degrees Screen Brightness1 (projectors only) 34.9 foot-Lamberts centimeters centimeters centimeters centimeters centimeters pixel/cm pixel/cm million pixels 3.21 2.79 1.57 1.455 1.455 meters meters meters millimeters millimeters Note: sitting closer to the screen gives a wider field of view. 119.6 cd/m2 Screen brightness (30-70 foot-Lamberts) is acceptable for rooms with some ambient light. Reverse Screen Brightness to Projector Lumen Calculator (projectors only) Desired Screen Brightness1 Required Projector Brightness 34.9 foot-Lamberts 1500 lumens Universal projector throw distance calculator: enter any single screen size and the min/max throw distance published by the manufacturer For a 110 inch wide screen (not necessarily the size screen you will be using) the min throw distance is 14.3 feet and the max throw distance is 19.5 feet Projector Locations (projectors only) Minimum screen width throw ratio Maximum screen width throw ratio Min throw distance (for screen size entered in cell C8) Max throw distance (for screen size entered in cell C8) Max height ratio above screen Max distance above screen (for screen size entered in cell C8) 1.56 2.13 171.6 234.0 0.50 30.9 times screen width times screen width inches 14.3 feet inches 19.5 feet times screen height inches 2.6 feet 435.9 centimeters 594.4 centimeters 4.36 meters 5.94 meters 78.6 centimeters 0.79 meters