(meteorobs) Meteor photography and fisheye lens advice please

[Leo S]

Chris Peterson wrote:
> Rather than thinking of the high ISO 
> settings as high gain, you would be better off thinking of the low settings 
> as low gain, useful when you have so much light you need to reduce 
> sensitivity.
>
>   
That's pretty much what I do. The more light pollution there is, the 
lower the ISO that I use.

>
> Not a big issue for meteor photography, because you don't typically fill the 
> available pixel well depth due to the short time the meteor actually spends 
> on a pixel (and fireballs will generally saturate any sensor). With CCDs, 
> and some CMOS sensors, larger pixels usually give greater dynamic range, 
> which is very useful for typical long exposure astroimaging, but that's not 
> what we're about with meteor imaging.
>   
That makes sense. Thanks for explaining Chris.

Leo