Re: [APML] LX 90 for Astrophotography ?

["Rick Krejci" <rick.krejci@psware.com>]

Simon,

While I have no experience with the mounts you describe, I've had success
with the LX-90.  I am very much a beginner (<6 month experience), but I feel
the LX-90 is very solid and capable.

It has no PEC, but the periodic error present is very smooth and predictable
(i.e. no lurching or jerking).  With autoguiding, the lack of PEC is a
non-issue IMO.

No mirror lock, but I've found very little image shift in focusing (~10
arcsec) and I assume that would be an absolute worse case for mirror flop.
As long as you end focusing CCW, it becomes basically a non-issue.

My web page has some examples of what the LX-90 is capable of by a complete
newbie.  The Orion photo is from the first roll of film I ever tried and is
manually guided.  The M51 slide portion was 1 hour manually guided.  The
Trifid (my favorite) was autoguided with my ST-5.

I don't have a flip mirror, nor do I have a desire for one.  Using high
precision mode, I can consistently get the object in the FOV of even the
tiny ST-5.

If you're looking for a solid, relatively inexpensive astrophotography
platform, I don't think there's a better bang for the buck.

Rick
My LX-90 Astrophotography Site.
http://home.earthlink.net/~rjkrejci/

----- Original Message -----
From: "Simon" <compulsion@btinternet.com>
To: <astro-photo@seds.org>
Sent: Friday, September 21, 2001 5:48 AM
Subject: [APML] LX 90 for Astrophotography ?


> Any one have any experience of using the LX-90 for photography ?
>
> would it perform better than my current Visac, Skysensor on SP mount ?
>
> Cheers.
>
>
>
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