There are varying opinions on how big, or small, you want your image to be, whether a projection system or a television. And in the days before Blu-ray and 4K (or even improved HDTV), erring on the smaller size was often the best practice.
But now, with the steady increase in content picture quality over the last few years, and the amazing improvements in TV picture reproduction, going with a bigger image can be the ideal choice. This applies to most any source material, even when watching local news!
Let’s take a look at what some industry experts recommend.
For Television viewing
THX, a leader in the cinema industry, now recommends multiplying the seating distance (in inches or centimeters) by 0.835. The result is the recommended screen diagonal measurement. So, if your customers are like a lot of us, and their seats are about 8 or 9 feet from the TV, then THX recommends an image that is approximately 90” diagonally. Go BIG or go home!
If you want to do the math backwards, for an 85in TV: 85 / .835 = 102” or about 8.5ft.
Sony offers these recommendations for minimum viewing distance:
TV Size Min. Viewing Distance
55in 39in
65in 47in
75in 55in
85in 63in
(That is approximately 1.4x the distance to the image = screen size. If you don’t have a calculator, rounding up to 1.5 won’t hurt.)
For Projection Systems
Projector systems are a little different, but not much. Also, there will typically be a little closer seating for that “movie theater” experience. But don’t forget the folks in the back row.
The Society of Motion Picture and Television Engineers recommends multiplying the seating distance by 0.625. If the theater has several rows of seating and the back row is at 20ft, then a 150in diagonal is a nice choice. (240 x .625 = 150)
But, don’t make the mistake of going WAY too big. If the viewer is forced to move their head back and forth while watching the show, they are probably sitting too close.
Unless it is a tennis match. Or a really fast basketball game!
Next time you’re helping customers decide on the right TV or projector setup, use these recommendations to create the ultimate viewing experience.