Re: [APML] NGC 3953 using LLRGB technique

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

Hi Mike,
Thanks. Yes it was taken using my new AP1200.
I do notice a slight improvement in tracking over the
AP900 with everything I've got on it (70 lbs). Kudos
to Roland for making such outstanding equipment.
Also thanks to others for their nice comments.
Rob Gendler
Email: robgendler@att.net
Web site: http://www.robgendlerastropics.com/
----- Original Message -----
From: "Mike Cook, AF9Y" <mwcook@concentric.net>
To: <astro-photo@seds.org>
Sent: Saturday, April 20, 2002 10:06 AM
Subject: Re: [APML] NGC 3953 using LLRGB technique


> Robert,
>
>     "Just right" processing demonstrates how an image can show all the
> detail without the harshness you see in some images.  Of course
> having all that RC S/N helps.  Was this image taken with your new
> 1200 mount?
>
> Mike
>
>
>
> From:           "Robert Gendler" <robgendler@worldnet.att.net>
> To:             <astro-photo@seds.org>
> Subject:        [APML] NGC 3953 using LLRGB technique
> Date sent:      Sat, 20 Apr 2002 09:28:47 -0400
> Send reply to:  astro-photo@seds.org
>
> > Hi all,
> > OK I'll try to do this a lttle differently <G>.
> > I've uploaded a new image of NGC 3953, a nice
> > spiral in Ursa Major. The image is at:
> > http://www.robgendlerastropics.com/3953.html
> > I used the "LLRGB" technique to bring up the rather
> > weak color data. The processing steps are outlined below.
> > 1)Calibration, stacking, and RGB composite in Maxim.
> > 2) LR applied to Luminance in AIP.
> > 3)RGB and Luminance saved as 16 bit and brought up
> > in PS where curves, levels applied and converted to 8bit.
> > 4)First LRGB created using layers in PS. Opacity brought
> > to 50% and image flattened. Additional saturation (30%)
> > and gaussian blur (1.7 pixels) applied. This image was then used as the
> > "new" RGB and two more additional rounds of the same were performed
> > which very significantly enhanced the color data. If anyone is
interested in
> > the details of the technique my LLRGB article can be found at
> > http://www.robgendlerastropics.com/LLRGB.html
> > Rob Gendler
> > Email: robgendler@att.net
> > Web site: http://www.robgendlerastropics.com/
> >
> >
> > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
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> >
>
>
>
> Mike Cook, AF9Y
> http://www.af9y.com
> mwcook@cris.com
>
>
>
>
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