Re: [APML] Another M42 - again

["Clayton Kessler" <ckessler@gatecom.com>]

Jeff and Steve,

I appreciate the kind comments from both of you.  I have been using Kodak
Supra 400 (from Kim at Unique) for this series of negatives.  I believe the
RG400 film is very similar if not the same.  The original color was very
scarlet and gold!  Very different from the unfiltered shots that I have
taken.  I have an Orion Broadband filter but the Lumicon is a "T" to "T"
filter that is convenient to use on the 6" Meade.  Perhaps I will take a
series through the 4" f6 refractor with the Orion filter to compare color
shifts.

Clay


----- Original Message -----
From: "Steve" <sc02492@yahoo.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Sunday, March 09, 2003 5:59 PM
Subject: RE: [APML] Another M42 - again


> Clay, I second Jeff's comments.  Very nice work!   I
> used the Orion Sky Glow (broadband) filter on mine,
> with Kodak RG400 Select film, and noticed only a minor
> shift towards the magenta end that was corrected by
> post-processing.   What film are you using?
>
> I  think that the IDAS filter would be better, but at
> the moment I'm not ready to pay the extra $$$.  With
> the LX90 at f5, I can't get the Running Man Nebula in
> the FOV, so I'll have to wait until next year to make
> a mosaic.
>
> Thanks for the comment on my M42.  I think it's
> improved with Jeff's advice.
>
> Steve Cannistra
>
>
> --- Jeff Ball <jeffball@zoominternet.net> wrote:
> > Clayton,
> > That is very nice!  Not much to suggest.  Perhaps a
> > little more color
> > balance favoring green, a little less blue in the
> > low levels.  Very minor
> > adjustments.  It looks great as is.
> > Congratulations.  I am not aware of a
> > standard color adjustment.  It would be dependent on
> > the film as well I
> > guess.  You have done a wonderful job with this.
> >
> > Jeff Ball
> > www.astro-photography.com
> >
> > -----Original Message-----
> > From: astro-photo-bounces@seds.org
> > [mailto:astro-photo-bounces@seds.org]On Behalf Of
> > Clayton Kessler
> > Sent: Sunday, March 09, 2003 4:55 PM
> > To: Discussion of Film Astrophotography
> > Subject: [APML] Another M42 - again
> >
> >
> > I have been reading the discussions about Steve's
> > wonderful M42 with a great
> > deal of interest.  I have been using the suggestions
> > made to him to process
> > this M42 that I took mainly last Sunday night.  I
> > took all of these shots
> > through a Lumicon Deep Sky filter and I was amazed
> > at how much color shift
> > that I got.  I have been struggling to correct this
> > color shift and have
> > made some progress - but not enough.  Do any of you
> > have a standardized
> > "correction" formula that you use to correct for
> > shooting through this kind
> > of filter?  Perhaps the final answer is to get the
> > IDAS filter which, I
> > understand, does not inject such a radical color
> > shift.  The shot can be
> > found here:
> >
> http://www.gatecom.com/~ckessler/M42%20SSO%203-2003.htm
> >
> > I would appreciate any comments or suggestions.
> >
> > Thanks
> > Clay Kessler
> > http://gatecoms.gatecom.com/~ckessler/
> >
> >
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