From: Kurt Friedrich (kurt_friedrich_at_antispamdomain.not)
Date: Tue Nov 25 2003 - 17:01:08 EST
Hi,
I have the 90mm version, which one person has told me,
has slightly worse optics than the 80. I also use
mine for a guide scope (and a finder).
If you go to my web site:
http://mywebpages.comcast.net/kurtfriedrich/
you can find 2 moon pics and 2 pics in the "stars"
sections that were taken with it and a CP4500.
You will get pretty serious purple fringe on the moon
and bright planets. I tried a minus purple filter, but
that made the other colors too wrong. Instead I would
resort to PC post processing. I actually got "runner
up" in the monthly challenge once with my M35 taken
thru this scope, but I did extensive work to get rid
of the purple. All in all, it was a very expensive
scope. I bought it, and I was unhappy, so then I
bought a used TV Genesis, and that got me really
excited, but I still was not happy, so then I bought
an AP130 and a Tak mount. Its a slippery slope once
you get on it. Thankfully, my current set up is the
maximum I can carry, so I am safe for while.
Kurt
--- gregharp_.at._sbcglobal.net wrote:
> Bob,
>
> I have the Celestron 80 "Wide View" which is the
> same OTA and focuser as the
> Orion ST80, if that's what you're referring to.
> These are made by the
> Chinese company Synta. They're also available from
> Apogee and ScopeStuff at
> prices ranging from $120 to $200 with different
> accessories. I use mine as
> a guide scope.
>
> The stock 1.25" focuser on this scope has a built-in
> T-thread, so you should
> be able to attach any camera to it fairly easily. I
> haven't tried this yet,
> because I have higher quality optics in this focal
> length. I suspect that
> for photographic purposes the quality of the optics
> on this fairly
> inexpensive achromatic refractor will leave a bit to
> be desired,
> particularly in the area of chromatic aberration.
> It's no Televue. :) But
> it can not be beat for the price, as a portable wide
> field visual scope.
>
> However, I don't want to discourage you (or anyone)
> from experimenting. At
> some point I plan to try it out myself, as a
> comparison, since it's 1/3 of a
> stop faster than my 70-200mm f/2.8 lens with 2X
> tele-converter.
>
> There are two Yahoo groups that might interest you
> regarding this scope:
> the "80f5" group and the "Chinese_Refractor" group.
>
> --Greg
>
> > From: reim58 [mailto:reim58_.at._yahoo.com]
> >
> >
> > Back on the subject of imaging a larger FOV since
> it looks like a 3.3
> > focal reducer may not give good results with a
> D60. Has anyone tried
> > using the Orion short tube with a D60/10D camera
> and if so how did it
> > work out. I guess the first question should be
> can you even mount a
> > camera to this telescope (prime focus). If it
> works then I would
> > mount it to my LX90.
> >
> > Thanks.
> > Bob Reim
>
>
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