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RE: [APML] Sky-watcher
Is this the same scope Orion sells as Astroview rich field refractor 120/f5?
I was also thinking to buy it but the tests are looking quite bad.
Thanks,
Fabrizio
-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Andreas Roerig
Sent: Friday, May 03, 2002 12:03 PM
To: 'astro-photo@seds.org'
Subject: AW: [APML] Sky-watcher
> -----Ursprüngliche Nachricht-----
> Von: Albert Klein [SMTP:klein@amk99731.demon.nl]
> Gesendet am: Donnerstag, 2. Mai 2002 21:22
> An: astro-photo@seds.org
> Betreff: [APML] Sky-watcher
>
> Does anyone of you have experience with Sky-watcher refractors?
> I am thinking of purchasing a 102/500 rich-field refractor on an EQ-3
> mount or a 120/600 rich-field refractor on a Gem-1 mount.
>
> I want to get started with astro-photography and my original intention
> was to buy a Meade ETX but this has been discouraged as unsuitable
> for astro-photography.
Hi Albert,
I own a 120/600mm Skywatcher. It is a wonderful scope for wide field visual
work but it is crap when it comes to astrophotography.
Some while ago I did some test shots with it to check if it would be ok for
astrophotography. The result of my test can be found here:
http://a.roerig.bei.t-online.de/test/rosette.jpg
http://a.roerig.bei.t-online.de/test/ecke1.jpg
http://a.roerig.bei.t-online.de/test/mitte.jpg
It is a 10 minute exposure on TP2415hyp. The first image shows the raw scan
resized to 20%. The second is the corner of the frame in original size and
the third is the middle of the frame in original size.
The scope might be ok for CCD with small chips. In fact I did a shot of
Ikeya-Zhang with it (also on my homepage) but for 35mm frame it is no good.
Best regards
Andreas
:=================================
: Andreas Roerig
: Bahnhofstr. 16
: 65599 Dornburg-Wilsenroth
: Tel. 06436/28137
: http://home.t-online.de/home/a.roerig/index.htm
: (Letzte Aktualisierung: 25.04.2002)
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