Re: [APML] M100 reprocessed

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

Scott,
What you're noticing is probably a mild light pollution
gradient. Thanks.
Rob Gendler
Email: robgendler@att.net
Web site: http://www.robgendlerastropics.com/
----- Original Message -----
From: "R. Scott Ireland" <ireland@gate.net>
To: <astro-photo@seds.org>
Sent: Sunday, January 06, 2002 11:22 AM
Subject: RE: [APML] M100 reprocessed


> Hi Robert,
>
> As Jeff said, beautiful work as usual!
>
> One comment - I noticed the upper half of the image seems to have a
> blue/violet cast as compared to the bottom half, particularly in the
spiral
> arms.  Is this the object or some processing artifact?
>
> Take care,
>
> Scott
>
> website:  http://www.rsiphotos.com/
> email:  ireland@gate.net
>
> > -----Original Message-----
> > From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> > Behalf Of Robert Gendler
> > Sent: Sunday, January 06, 2002 11:02 AM
> > To: astro-photo@seds.org
> > Subject: Re: [APML] M100 reprocessed
> >
> >
> > Jeff,
> > Thanks. I generally do 10 minute exposures and stack them.
> > This is based on several factors including blooming, convenience,
> > S/N, etc.
> > Rob Gendler
> > Email: robgendler@att.net
> > Web site: http://www.robgendlerastropics.com/
> > ----- Original Message -----
> > From: "Jeff Ball" <jeffball@netacs.net>
> > To: <astro-photo@seds.org>
> > Sent: Sunday, January 06, 2002 10:56 AM
> > Subject: RE: [APML] M100 reprocessed
> >
> >
> > > Rob, That is outstanding as always.  Excuse me, but time for stupid
> > question
> > > time.  I am CCD illiterate.  When you list 250 minutes as
> > Luminance, that
> > is
> > > a sum of shorter duration exposures?  If so, about how long are the
> > longest
> > > exposures you would take?  Does it depend on the amount of blooming
that
> > > would exist on field stars?  Thanks.
> > > Jeff
> > >
> > > -----Original Message-----
> > > From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> > > Behalf Of Robert Gendler
> > > Sent: Sunday, January 06, 2002 10:05 AM
> > > To: astro-photo@seds.org
> > > Subject: [APML] M100 reprocessed
> > >
> > >
> > > Hi all,
> > > This was one of the galaxies on my list for reprocessing.
> > > I think the color and detail is now much better. Some
> > > LR deconvolution was applied.
> > > http://www.robgendlerastropics.com/M100.html
> > > 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>


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