From: Alan Friedman <alan@greatarrow.com>
Date: September 6, 2005 11:10:12 AM MDT
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] New DSO Images
HI Milton -
Flu on vacation - that's awful! Hope you got to enjoy some of it at least.
I enjoyed seeing your deep sky images. I had my first chance to image a planetary nebula at Black Forest Star Party - will post the images when finished. I was very surprised how well it worked.
Alan
On Sep 2, 2005, at 12:41 PM, Milton Aupperle wrote:
Hi folks;
I was on vacation (well in theory I was, I was sick with a flu for 10
of my 14 day "vacation") and managed to tak a few images with the Flea
camera and the MAK scope from a very Dark Sky area. I have posted
images of M1, M27, M31 Core, M31 and M57 in the DSO file area. Levels,
sharpening and saturation adjustments were done with a new 16 bit
(i.e. RGB48 bit image) module I'm working on in Astro IIDC 2.x.
It was lucky that Astro IIDC can guide, as the replacement RA drive /
hand controller I received from Orion was screwed up and tracked slow
(about 1 arc second for every 4 seconds) and can not be adjusted. So
without Astro IIDC constantly correcting I'd have gotten nothing
captured at all. Even doing Drift Polar Align was next to impossible
without it. The guiding was done using a unibrian mono camera with a
50 mm apertur 600 focal length telephoto scope and a second copy of
Astro IIDC, so two cameras were being utilized at the same time.
One thing I learned was that you really need to make sure you take a
good average for Dark Frames with DSO's, even if it means waiting a
while. I did for the M57 shot (which was taken while a 3/4 full moon
was up), but did not for the August 28/29 session and as a result, I
needed to work the levels a lot to remove some noise.
TTYL..
Milton Aupperle
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