Hi Cary -- As an alternative filter option, I'm using Kodak photographic
"Wratten" filters ($5.00 each surplus: red #25A, green #58, blue #38 A) in a
single slot home made 2" filter holder. This combination has usually worked
quite well for me.

See my recent "Full Moon Cocoon" at:

http://www.lochsjewelers.com/lnai28.htm

best regards

Frank

> The basic problem with this is that the sheet material you have is not IR
> blocked. CCD's are sensitive to IR.
>
> -Cary
>
> >
> > Jeff,
> >
> > I've been meaning to experiment with that idea for some time now but
> > haven't gotten around to it as yet. I bought RGB sheets of color filter
> > material from Edmund Optics, some time ago. I don't recall the size,
> > but they're more than large enough to cover the end of my 10" LX200. The
> > sheets are a lot less expensive than their regular color filters, but I
> > can't vouch for their optical quality as yet.
> >
> > Bruce Johnston
> >
> > In a message dated 9/25/01 4:09:26 PM Eastern Daylight Time,
> >
> > <<
> > I have the Meade 216XT CCD. Instead of purchasing a color wheel,
> > couldn't I just use (inexpensive, hopefully) color filters in a
> > cardboard frame or
> > whatever
> > on the front of the OTA? If so, where would I find the necessary
> > filters?
> > >>
>


Best regards,
Frank Loch
Try Deep Space 99 at:
http://lochsjewelers.com/page1.htm
TPoint & DEC Bearing Mod at:
http://lochsjewelers.com/observatory.htm
For original music composed by Frank J. Loch:
http://www.lochreidmusic.com
For Free Downloads of Frank Loch's original music (or just to listen) Try:
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and now at our new "Euro and Oz" music centers:
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For original Digital Art and Multimedia Presentations by J. Frank Loch try:
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Hubble's Variable Nebula project page:
http://www.lochsjewelers.com/lnai20.htm

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