Join Date: Nov 2003
Location: new jersey, usa
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Kev and Ray,
We should get a proper screen size and viewing distance, not the biggest screen, to optimize movie viewing. Guideline from experts says the optimum seating distance for a 1080p resolution display on a 100 inches screen would fall some where between 12.5 and 16.5 feet. My seating is 15 feet away from my 120" diagonal screen (1.4 gain - brilliant white).
THX and SMPTE have their optimization guideline. But most people feel the guidelines are too close to get relax and realistic movie viewing. Here are the guide lines:-
THX suggest 40 degree viewing angle. The viewing distance for a 16:9 screen is the Screen diagonal (in inches) divided by 0.84 . For example, a 100 inches screen should be viewed from a distance of 9.9 feet away.
SMPTE suggest 30 degree viewing angle. The SMPTE formula is Screen diagonal (in inches) divided by 0.6 = viewing distance.
But the most realistic rule is to sit between 1.5x and 2x the diagonal screen measurement.
Hope this will help you to decide screen size and viewing distance. Again, we cannot get the full benefit of resolution if the screen is too small; we get tired easily if the screen is too large (i.e. viewing angle larger than 40 degree. (THX guideline)).