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Re: [APML] OT: Pleiades Mosaic
Beautiful work Steve.
Stephen Pitt
----------------
Steve wrote:
> Hi group,
>
> Here's a mosaic of M45 that I've been working on,
> taken with a Canon 10D digital camera:
>
> http://www.starrywonders.com/pleiadessmall.jpg
>
> A higher resolution image can be found at:
>
> http://www.starrywonders.com/pleiadeslarge.jpg
>
> I'm showing this on APML for 2 reasons. First, I
> started astrophotography with film and learned a great
> deal from Jerry Lodriguss, Matt BenDaniel and others
> about image processing. These techniques apply
> regardless of the medium that is used to take the
> shot. Second, this represents a mosaic, and I learned
> this technique from the useful information present on
> Rob Gendler's website. So although consumer digital
> cameras are somewhere in between film and CCD, the
> final common pathway for all of our shots is image
> processing, and I've learned a lot from this group.
>
> Details: This represents a total of 30 frames
> requiring about 3.5 hours of exposure, taken with the
> Canon 10D at ISO1600 (6 to 9 minutes per
> exposure), through the LX90 at f6.3, autoguided with
> the STV/e-finder. The mosaic was made with a total of
> 6 different sections of M45 (each section is an
> average stack of 5 frames). The frames for
> each section were processed as follows: raw
> conversion, adaptive dark frame calibration,
> alignment, autograding, min/max excluded
> averaging, and background compensation done in
> ImagesPlus; levels and curves adjustment in Photoshop;
> final smoothing done in Pleiades
> SGBNR software. Mosaic was constructed in Photoshop
> using the technique described by Rob Gendler. Total
> processing time was approximately 20 hours over a
> period of 3 days.
>
> Hope you like it.
>
> Steve Cannistra
> http://www.starrywonders.com
>
>
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