[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
RE: [APML] New result of my Veil Nebula image
Volker, interesting effect. However, the second image is far more cranked
up that the first one, and the comparison is difficult. I tried this method
on my schmidt shots and it does allow you to boost the contrast more without
making for a star dominated image. Thanks for sharing this interesting
tecnique.
Chris Schur
Astrophotography: http://www.psiaz.com/schur/astro/index.html
-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Volker Wendel
Sent: Monday, May 13, 2002 1:23 PM
To: astro-photo@seds.org
Subject: Re: [APML] New result of my Veil Nebula image
O.k., Chris, I will see in the future. I have not the experience so far.
Here is another example, where I used the process:
http://www.spiegelteam.de/ic405.htm
Volker
www.spiegelteam.de
> Volker, the extra contast boost in the minimum processed image makes the
> comparison difficult. But I still say you dont get something for nothing.
I
> did more tests on neb images, and yes there is some erosion of the edges
of
> nebula taking place - but its not devestating in most shots. In your case
> the trade off was well worth it.
>
> Chris
>
> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of Volker Wendel
> Sent: Sunday, May 12, 2002 11:28 PM
> To: astro-photo@seds.org
> Subject: Re: [APML] New result of my Veil Nebula image
>
>
> Chris, Iīve uploaded a part of that image in itīs original size
(@3048dpit),
> take a look at:
> http://www.spiegelteam.de/Galaktische%20Nebel/DunkeltechnikAusschnitt.jpg
>
> I can not see any cut of the very thin tendrils, but now itīs easily
> visible, why the impression of dominant stars is gone. BTW: a print in
30x40
> centimetres still looks great, the stars donīt look washed out as one may
> think when taking a look at the comparison.
>
> Volker
> www.spiegelteam.de
>
>
>
> > Volker, there is no doubt that the amount of very faint patches of
> > nebulosity is rendered much more visible. But does not the minimum
filter
> > also cut the width of the very thin tendrils as well? I do like the new
> > image, but for some of my own schmidt shots, some of the fine dark
nebula
> > detail is always reduced by the minimum method. Yours however is a
bright
> > nebula, and does not seem to be nearly as affected. Excellent work!
> >
> > Chris Schur
> >
> > -----Original Message-----
> > From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> > Behalf Of Volker Wendel
> > Sent: Sunday, May 12, 2002 11:53 AM
> > To: astro-photo@seds.org
> > Subject: [APML] New result of my Veil Nebula image
> >
> >
> > Hi all,
> >
> > Iīve uploaded a new page with a comparison of my old tricolor Veil
Nebula
> > image and the new result, using the minimum filter in Photoshop 6.0.
Iīve
> > added some informations about the process and some informations about
how
> > the image is made (english and german).
> >
> > My wish was to suppress the dominant foreground stars with out a loss of
> the
> > fainter nebula parts.
> >
> > Thanks to Grant Blanchard for taking the time to do the java script
being
> > used here! Hope that it works for everyone...
> >
> > Take a look at (800 kB!!): http://www.spiegelteam.de/Dunkeltechnik.html
> >
> > Volker
> >
> > Volker Wendel
> > www.spiegelteam.de
> > volker@spiegelteam.de
> >
> >
> > -- 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>
-- APML Archives at <http://astro.umsystem.edu/apml/> ---
Unsubscribe at <majordomo@seds.org>