Would like to photograph the Perseids

I would like to take a long exposure of the night sky and capture some
Perseid meteor trails. If I turn my lens to its widest zoom, I have
a lowest possible f-number of 3.5; I assume that I want as wide an
aperture as possible. Meteors set their own exposure time, as it were;
so all that is left for me is to pick the ISO number. During long
exposures, I have a choice of ISOs running from 200 to 1600. I have
no idea how bright a meteor is compared to other things; should I
go for the highest ISO number and hope for the best? Or are they
bright enough I should choose a lower ISO and reduce both the noise
and the brightness of the surrounding sky?


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On Aug 9, 11:17*pm, (Paul Ciszek) wrote:
I would like to take a long exposure of the night sky and capture some
Perseid meteor trails. ...
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Simplest thing to do is to take some test images and see if the sky
background is dark enough.

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FF