Posted by Seattle Eric on 12/23/56 11:28

Dang, Kujbida..... why does 512 milliseconds ring in my head?? Is that
any timing pulse?

Mike Kujbida wrote:

> AJ@spamattackk.com wrote:
>
>>Does anyone know the actual length of time of an NTSC video blanking
>>interval? I've searched the web and can only find descriptions of
>>what the blanking interval is but NOT how long it lasts.
>>
>>I am trying to determine the amount of time during which a video
>>camera "does not see." I know the sutter speed will effect what is
>>not recorded but I need to know the specific blanking interval time.
>>
>>Thanks if you can help with this.
>>
>>AJ
>
>
>
>
> Depends if you're talking about end of video line blanking or end of video
> field blanking.
> Blanking pulse width (end of line) is 10.9 microseconds.
> The vertical blanking interval (end of field) is 1271 microseconds.
> Reference is from p. 71 of the (5.5 MB) pdf from Tektronix at
> http://tinyurl.com/hom4
>
> Mike
>

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