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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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