Re: [APML] Andromeda Up Close and Personal

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

Sorry, one thing I left out was the processing involved in
bringing out the dustlanes near the core. In PS I used
layers in "darken" blend mode. The canvas was my stretched
core image. I then layered onto this a version with very high contrast
brought out by aggressive unsharp mask. With the "darken" mode
selected only the shadow data gets incorporated into the canvas
image. 
Rob Gendler
Email: robgendler@att.net
Web site: http://www.robgendlerastropics.com/
----- Original Message ----- 
From: "Robert Gendler" <robgendler@worldnet.att.net>
To: <astro-photo@seds.org>
Sent: Tuesday, October 01, 2002 7:26 PM
Subject: Re: [APML] Andromeda Up Close and Personal


> Thanks very much to all who responded.
> The steps involved in creating the image are as follows:
> 
> 1) Five separate frames were used. Four frames were
> done with the core as a common central reference point.
> A fifth frame was taken with the core in the center. Each
> frame was about 60 minutes (20 minute subexposures).
> The core shot was 100 minutes with 5 minute subexposures.
> 
> 2) Each separate subexposure was calibrated and 4 iterations of
> ccdsharp was applied. The images were then stacked in maxim.
> DDP was applied only to the core region frame. Nonlinear stretching
> was applied to the 16 bit files in PS.
> 
> 3) The greyscale luminance (5 frames) was assembled into a mosaic in
> PS using the technique published on my web site at
> http://www.robgendlerastropics.com/Article3.html
> 
> 4) The color data came from several previous images of M31 taken with
> various
> instruments and cameras including my RC, FSQ106 and ST10, IMG1024
> cameras. The color data and greyscale luminance mosaic were registered
> using registar. Final touches were applied in PS.
> 
> 
> Rob Gendler
> Email: robgendler@att.net
> Web site: http://www.robgendlerastropics.com/
> ----- Original Message -----
> From: "Tim Hart" <Tim.Hart@haworth.com>
> To: <astro-photo@seds.org>
> Sent: Tuesday, October 01, 2002 4:55 PM
> Subject: Re: [APML] Andromeda Up Close and Personal
> 
> 
> > Absolutely STUNNING!!!
> >
> > Can ya shed some light on the RC that made such a masterpiece?
> >
> > Tim
> >
> > >>> robgendler@worldnet.att.net 10/01/02 03:34PM >>>
> > Hi all,
> > This 5 frame mosaic is one of my most ambitious imaging projects.
> > http://www.robgendlerastropics.com/M31highrescore.html
> > Enjoy and remember to scroll around <G>.
> > Rob Gendler
> > Email: robgendler@att.net
> > Web site: http://www.robgendlerastropics.com/
> >
> >
> > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> >              Unsubscribe at <majordomo@seds.org>
> >
> >
> >
> > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> >              Unsubscribe at <majordomo@seds.org>
> 
> 
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>


--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>