Re: [APML] Interesting...Supra 400

["Don Spencer" <ecdon@cox.net>]

Thanks Alan,
                     I am shooting through a 600mm f/5 refractor, not the
12" yet. I've tested my limitation and it seems that 20 minutes is about as
much as I can go from my driveway. That is why  I am attempting to shoot
alot of short exposures (why not, I got 36 exposures...:-) ), then combining
them.
I will try going longer when I finally use the LX200..
Thanks,
Don Spencer
> Won't the filter also cause you to need much longer exposures? I can
> say this: at f/10 Supra needs 45 or 50 minutes just to get warmed up.
> Depending on your sky conditions you can go for at least a couple of
> hours. At f/10 the film will be slower to respond to skyglow. Try
> longer exposures, at least to find out what your limits are.
>
> Alan
>
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