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Posted by GeekBoy on 04/18/07 06:01
"EHSTC" <pilkington13@netzero.net> wrote in message
news:1176852627.707885.292180@e65g2000hsc.googlegroups.com...
> On Apr 17, 5:34 pm, "GeekBoy" <n...@nerdy.com> wrote:
>> "EHSTC" <pilkingto...@netzero.net> wrote in message
>>
>> news:1176843245.443261.165350@p77g2000hsh.googlegroups.com...
>>
>> > Hey all,
>>
>> > My high school TV studio has a green screen, and we have got it to
>> > work, but I get loads of "sparkles" on my subject. Ive looked into
>> > this online, and found that it is cuz of spill from over lighting at
>> > that the screen luminisity or something should be at 40-50
>> > IRE........WHAT IS IRE, and how do i measure that?
>>
>> Institute of Radio Engineers; IREs are units of measurement dividing the
>> area from the bottom of sync to peak white level into 140 equal units.
>> 140
>> IRE = 1VP-P
>>
>> Using a vector or wave scope which is a lot more money than maybe the
>> school
>> is willing to spend. Unless they arelready have a scope.
>> Some editing software has these on them to measure.
>>
>>
>>
>> > thanks
>> > EHSTC- Hide quoted text -
>>
>> - Show quoted text -
>
> ANy idea as to which program, or even what to look for in the
> programs??
On "Premiere" its in the program and source windows. Right click on one of
the windows select DISPLAY MODE. You will see the different scopes.
YC Waveform is what you want. Anything above 100 is too bright, and I think
below 20 or 7 is too dark.
On Final Cut, its TOOLS at top of meun then SCOPES
>
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