No, it works for PAL and SECAM as well as NTSC.
They all produce the same number of lines per second.
PAL and SECAM produce more lines per frame in the extra time
they have at the lower refresh rate, so you can calculate lower
shutter speeds if you want to count past 300...
tOM
On 11 Dec 2005 at 20:32,
Jez Cunningham <olympus@xxxxxxxxxx> wrote:
> Note: the TV set method needs different numbers if you have 50Hz
> refresh rate where you live... br Your 'pal' Jez
>
> On 12/11/05, tOM Trottier <tOM@xxxxxxxxxxxxx> wrote:
> >
> >
> > You can check the fast (1/125 & shorter) shutter speeds by
> > taking closeup pics of your CRT TV screen. Focus so it's sharp.
> > The screen is painted every 1/60 second by 262 or 263 lines,
> > 15,720 lines per second. Put a ruler at right angles to the lines
> > on the negative (need a magnifying glass!) or print and you count
> > them to determine the actual shutter speed using this table:
---
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