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Re: [APML] First photos with AP 130 EDT
Hi Jeff:
Thanks for posting the uncropped scan. While the vignetting is certainly
there, the big negative gives you lots of unvignetted image to work with.
Another question: does the AP Convertible Photo-Visual Barlow work with the
the pentax camera adapter? I have the 130 f6, so my magnification on small
galaxies is pretty low and the Barlow definitely helps. Works nicely on the
35 mm camera adapter.
Thanks,
Bert
Bert Katzung
San Rafael, CA
----- Original Message -----
From: "Jeff Ball" <jeffball@netacs.net>
To: <astro-photo@seds.org>
Sent: Sunday, 18 June, 2000 5:52 AM
Subject: Re: [APML] First photos with AP 130 EDT
> Hey Bert,
> Thanks for the comments. Both of those images are significant crops. I
> posted a scan of one of the M101 negs. It is a pretty nasty .jpg
> compression, but you get the idea of vignetting with a 6x7 on an AP 130.
>
> http://webpages.marshall.edu/~ball3/m101_uncrop.jpg
>
> Hope that helps.
> Clear Skies,
> Jeff Ball
>
> ----- Original Message -----
> From: Bert Katzung <katzung@pacbell.net>
> To: <astro-photo@seds.org>
> Sent: Sunday, June 18, 2000 12:09 AM
> Subject: Re: [APML] First photos with AP 130 EDT
>
>
> > Hi Jeff:
> > Great shots with your AP130! I particularly like the M101. I'm also in
> the
> > process of trying to use my new 130 to its maximum potential but have
not
> > tried 6x7 format yet. Do you find significant vignetting and if so, are
> you
> > cropping it off or correcting in PhotoShop?
> > Bert
> >
> > Bert Katzung
> > San Rafael, CA
> >
> > ----- Original Message -----
> > From: "Jeff Ball" <jeffball@netacs.net>
> > To: "APML" <astro-photo@seds.org>
> > Sent: Saturday, 17 June, 2000 6:04 PM
> > Subject: [APML] First photos with AP 130 EDT
> >
> >
> > > Hey APML,
> > > Well, I have finally tweaked enough on the images and built up enough
> > nerve
> > > to post the results - the first photos taken with my AP 130 EDT on a
> > 600QMD
> > > mount. I desperately want to take the best images possible with this
> > > setup. I can't believe how much fun it has been to use. I sold my
> LX200
> > > in January - right before the price decrease on the models:-) I also
> > > received my AP 130 EDT on January 3 (right before the price increase -
> > > living right I guess), but did not have the mount fully functional
> until
> > > the April new Moon period. I still cannot believe I am working on
> > refining
> > > polar alignment after one and a half years of prime focus photography.
> > > June new Moon was a total miss here in the Ohio Valley.
> > >
> > > The images are of M101 - a 4 x 60 minute stack on PPF 120 scanned by
> Russ
> > > Dickman. Russ also helped tremendously on the processing, although
the
> > > final image is my own processing (stacking in PW and enhancements with
> > > PhotoShop 5.0
> > >
> > > http://webpages.marshall.edu/~ball3/m101.htm
> > >
> > > M81-82 is a 5 x 60 stack - one negative was hypered - PPF 120. Again,
> > > scanned by Russ and stacked with PW and enhanced with Photoshop.
> > >
> > > http://webpages.marshall.edu/~ball3/m81_82.htm
> > >
> > > Praying for some decent mid-summer weather here in the usual
> > hot=hazy=humid
> > > Ohio Valley during July new Moon. Thanks for any comments. I truly
> enjoy
> > > learning this great hobby.
> > > Clear skies,
> > > Jeff Ball
> > > Ohio Valley Astronomical Society
> > > http://webpages.marshall.edu/~ball3/ovas.html
> > >
> > >
> > > -- APML Archives at <http://www.system.missouri.edu/apml/> ---
> > > Unsubscribe at <majordomo@seds.org>
> >
> >
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> >
>
>
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