From: David Folmar (email suppressed)
Date: Wed Oct 31 2007 - 15:04:30 PDT
No TV screens have a blanking interval..between each frame when the screen is scanned in black.. it's that roll bar you see sometimes when you film a screen or video it at a diffrent refresh rate from the screen
David Folmar
"John Bigboote: It's not my goddamn planet. Understand, monkey boy? "
Date: Wed, 31 Oct 2007 17:53:59 -0400
From: email suppressed
Subject: Re: how much of what we see is black?
To: email suppressed
In a message dated 10/31/2007 12:28:54 P.M. Pacific Daylight Time,
email suppressed writes:
It IS true that the film projector
shutter cuts the light off and leaves us in the dark for (roughly) half the
time. Not just somehow different, but fundamentally different.
-
Whiteside
It's less than half, quite a bit less in projectors with narrow
blades. And the "darkness" created by the shutter blade sectors only interrupts
the projected image. It doesn't create a lingering piling on effect in the eye.
This is why POV is not true, and why flicker in film projection is not the
result of the darkness. In fact, if you replaced the dark sectors with, say,
white light, you'd still have flicker, because it's caused by the intermittent
images, not the dark intervals. It'd be a weird flicker, but it would still be
flicker.
TV doesn't have the clean off/on dark intervals, does it? There's
always some kind of scanned image on the screen, from what I've read. So yeah,
it's fundamentally different.
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