Re: [APML] New image: The Crescent Nebula

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

Thanks Juan. That's what I needed to know.
Don Spencer
----- Original Message -----
From: "Juan Conejero" <skycad@ctv.es>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Saturday, June 07, 2003 5:21 AM
Subject: Re: [APML] New image: The Crescent Nebula


> At 10:21 06/06/2003 -0700, you wrote:
> >Juan,
> >          Have you tested shooting through the scope without the IDAS? I
just
> >got rid of my refractor and am going to start shooting through my 12"
LX200,
> >some of which will be done from the city. I'm in a moderate to heavy
light
> >polluted area and will be shooting at F/7.5. I have the IDAS, but was
> >wondering if I would still need it.
>
> Don,
>
> I don't know your exact light pollution conditions, but I bet that, yes,
> you *do* need the IDAS. I had the opportunity to verify this recently.
Just
> a few days before receiving my IDAS, weather was excellent at my location,
> with exceptional transparency and LVM of about 5.5.  I did three 60 min.
> shots of M81 with the 12" LX200 at F/7 without filter from my backyard,
> which were completely ruined by light pollution. I can post one of these
> images if you want. Don't doubt, always use the IDAS.
>
> Regards,
> ______________________________________
> Juan Conejero, Pleiades Astrophoto
> skycad@ctv.es
> http://www.pleiades-astrophoto.com/en.html
>
>
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>


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