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#### jonsteelman

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For those who know about the math, optics, and/or practical aspects, I've heard that there is a range of screen sizes at typical viewing distances that is optimal for 1080p. For example, below a certain size screen (40"?) you can't tell 1080p from a lesser resolution. The question is, at what size screen with normal viewing distance could a person begin to notice a better pic with quad resolution compared to 1080p? 60", 65", 75" or would it need to be larger?

#### mondaycurse

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You mean something like this?

#### jonsteelman

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nice

#### Fanaticalism

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Or, measure the screen diagonally, and multiply by .84 (THX recommendation). For example, a with a 42" screen, you should be approximately 3ft away.

Keep in mind, this is more of a guideline, then an actual rule of thumb. Everyones perceptional abilities vary, which may allow some of us to view at a greater distance, and still reap the benefits of 1080p.

#### SystemShock2

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
Quote:
Originally Posted by Fanaticalism /forum/post/15577426

Or, measure the screen diagonally, and multiply by .84 (THX recommendation).

For example, a with a 42" screen, you should be approximately 3ft away.

Yah, that's crazy.

Correct me if I'm off, but isn't a whole lot of HD content still 720p? If so, there's less of an imperative to meet THX's 'ideal' 1080p viewing distance. Not that I would anyway, that is crazy close relative to screen size, no matter what anyone says.

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