i am not sure but is PAL 24 fps (frames/sec) and NTSC 30 fps?
memory is lapsing, as always, but i thought i once read that over
a certain framerate (maybe it is 15-18) that the human eye cannot
distinguish between the different frames. anyone know the number?
odd, there is 110/120-220/240 power in the USA on a 60 cycle/
frequncy grid. and in europe and elsewhere the number is different,
maybe 55 or something, i forget. wonder if this is connected with
the TV frame rate, if there is a related equation between power-media.
bc
memory is lapsing, as always, but i thought i once read that over
a certain framerate (maybe it is 15-18) that the human eye cannot
distinguish between the different frames. anyone know the number?
odd, there is 110/120-220/240 power in the USA on a 60 cycle/
frequncy grid. and in europe and elsewhere the number is different,
maybe 55 or something, i forget. wonder if this is connected with
the TV frame rate, if there is a related equation between power-media.
bc
On Fri, Feb 15, 2002 at 07:36:35AM -0600, patachon wrote:
the video/tv sets are working at 24-25 cycles, and such frequency is
sometimes considered the cause of some seizure , simple similar to a crisis,
for being a near multiple of the 12 cycles lightning frequency used for
medical detection of epilepsy.
This is not so in the USA, where the television frame rate is 30 or 60
frames/second, depending on how it's counted. Because of now
irrelevant technical considerations, television frame rates are half
the AC power frequency.
in some animated movies, the picts used to animate the movement are
sometimes using with the same 12 cycles frequency,( one pict each two
frames) and eventually a kind of crisis is possible like the one who
appeared some years ago with the japanese animated film for childrens.
I'll be damned--I didn't know about that.
Randolph