Re: [APML] Orion panorama

["Jim Janusz" <jjanusz@dc.rr.com>]

John had a problem with his link.  The correct link is:  Take a look it's
another work of art.

http://aisig.sdaa.org/astroblogDetail.asp?imgID=318&UserID=67

Wei-Hao, another great shot.

Jim

----- Original Message ----- 
From: "John Laborde" <jlaborde@ix.netcom.com>
To: "Wei-Hao Wang" <whwang@gmail.com>; "Discussion of Film Astrophotography"
<astro-photo@seds.org>
Sent: Wednesday, January 12, 2005 11:52 AM
Subject: Re: [APML] Orion panorama


> Great shot Wei-Hao!
>
> I know exactly how much effort this has been. I'm working on the very
> same mosaic. It will be 12 frames (3 wide 4 tall) with each frame being
> a composite of 2 color, one of which is filtered though a Deep Sky
> filter, and one tech pan  for a total of 36 images and 42 hours of
> exposure. I'm still about 3 weeks from the final mosaic but here is a
> sample of  6 frames with just  the color deep sky images.
>
> http://aisig.sdaa.org/astroblog/astroblogDetail.asp?imgID=318
>
> John Laborde
>
> Wei-Hao Wang wrote:
>
> >ALOHA,
> >
> >Please allow me to call this a panorama, although it doesn't cover the
> >entire Orion.
> >I went to Mauna Kea last month and it may be my last time taking astro
pictures
> >in recent 2 or 3 years.  This image is the primary effort of mine
> >since Dec 2003.
> >Here we go:
> >http://www.ifa.hawaii.edu/~wang/misc/orion_01x.jpg
> >
> >What you see is a 0.1x reduction of the original image.  I'm still
> >finalizing the image
> >processing.  Later (next month?) I will post a full webpage for this
> >image, including
> >all byproduct images.  At this moment, any comments are welcome.  Below
are
> >more details about the imaging and processing.
> >
> >Images were taken between Dec 2003 and Dec 2004, in a total of 9 nights.
> >Telescope is Pentax 105SDHF with focal reducer (F5.1).  Camera is Pentax
67.
> >Film is Kodak E100S pushed 1.  Exposure time is 90 minutes.  The final
picture
> >contains 22 of such images.  18 of them form a 3x6 mosiac.  4 of them are
added
> >onto selected regions to increase S/N.
> >
> >As before, the individual images were flattened in my own program,
registered
> >and calibrated in Registar, and combined in Photohop.  There is a
> >short exposure for
> >M42 very slightly blended into this image.  I prefer to keep M42
> >bright and almost
> >saturated.  I tried not to over-process the nebulas although the depth
> >of this image
> >does allow a strong enhancement.  The time I spent on image processing
> >is perhaps
> >2x the total exposure time.  Later I will tell you more details about
> >the technique
> >of image processing.
> >
> >Comments are welcome.
> >
> >Wei-Hao
> >
> >
> >
>
>
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>


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