From: "doobisary" <tjp314@pacbell.net>
Date: November 1, 2009 2:41:19 PM MST
To: Astro_IIDC@yahoogroups.com
Subject: Re: How to mount a filter wheel
Isn't the SX filter wheel mounted via pentax threads? Or t-threads? (which might be the same thing, I think). If so, you could check if your LX200 has a camera t-thread adapter that then screws onto the visual back.
-Tim.
--- In Astro_IIDC@yahoogroups.com, Terrence Redding <tredding@...> wrote:
Don, that is right.
Nothing in the documentation describes mounting the filter wheel on
the camera or the scope. In my case I have an LX200R with electronic
focuser. I assume I mount the filter wheel after the focuser, and
before the camera. There is nothing that says which side of the wheel
is towards the scope and which is towards the camera.
The filter wheel has no mounting hardware. Assuming the labeling
faces out, than it would appear some form of threaded coupler must go
between the wheel and the scope. I assume a 2" adapter of some type.
The side of the wheel I assume must attach to the camera does not have
a way to couple to the camera - so some form of an adapter is required
there as well to receive the nose of the camera.
But as you can see I have a lot of assumptions and no instructions, or
even a picture showing the filter wheel with a camera.
I assume in a few days I will be among the many that know how to use
the filter wheel with the LX200R and a variety of planetary imaging
cameras. But I hate to loose another week, after waiting nine weeks
for the filter wheel, to figure all of this out.
That is why I am so thankful for groups like this which can lend
assistance.
The Starlight Express Filter Wheel is finely crafted, very quite and
quick. I have the seven position filter wheel installed with the
Baader LRGB-CCD-Filterset 1 1/4" installed. I like the idea of
software control and a single USB cable for power and wheel control.
I believe Starlight Express has another winning piece of kit. My
serial number is SXFW-041 which implies it is only the 41st wheel made.
I have uploaded the manual that came with the wheel to the file section:
http://tech.groups.yahoo.com/group/starlightxpress/files/Redding%20Observatory%20South/
The question is how do I mount the wheel to the scope. And how to I
attach a camera. I am using integraing WAT-120N+ cameras, and small
DMK21 firewire planetary imaging cameras at this time.
I also have the DSI II and the DSI Pro II. The cameras all seem to
need the same sort of mounting point - the same as an ocular.
Terry - W6LMJ - 14.287
Terrence R. Redding, Ph.D.
Redding Observatory South, West Palm Beach, Florida
http://olt.net/learningstyle/Site_2/Learning_Style_Research.html
How do amateur astronomers learn?
http://www.youtube.com/watch?v=zSgiXGELjbc
American Association of Variable Star
Observers (AAVSO): RTN http://www.aavso.org/
On Oct 31, 2009, at 3:53 AM, LX200GPS@yahoogroups.com wrote:
Re: How to mount filter wheel
Posted by: "Donald" djd521@... astrojunkie52
Fri Oct 30, 2009 2:46 pm (PDT)
Terry,
Are you saying no instructions came with the filter wheel? I would
think going right to the source would get you an answer quickly in
the StarlightXpress Yahoogroup.
http://tech.groups.yahoo.com/group/starlightxpress/
Don