Re: [APML] M42: Deep and Detailed

["Robert Gendler" <robgendler@worldnet.att.net>]

Hi Gene,
The filters are made by custom scientific and are the same filters
used in the SBIG filterwheel. For a camera with uniform QE the
filter ratios should 1:1:1.   You can visit the SBIG site for the specs.
Here is the link to a nice article by Alan Holmes concerning RGB filters
http://www.sbig.com/sbwhtmls/app_notes.htm
Rob Gendler
Email: robgendler@att.net
Web site: http://www.robgendlerastropics.com/
----- Original Message -----
From: "Gene Horr" <genehorr@houston.rr.com>
To: <astro-photo@seds.org>
Sent: Tuesday, December 10, 2002 3:52 PM
Subject: RE: [APML] M42: Deep and Detailed


> Rob:
>
> You mentioned that the QE of the camera you were using for the RGB data
had
> a fairly even QE/wavelength curve, but what about the filters you were
> using?
>
> Gene Horr
> genehorr@houston.rr.com
>
>
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