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Old 15-02-2012, 10:48 PM
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Nico13 (Ken)
Galaxy Hunting

Nico13 is offline
Join Date: Jul 2009
Location: Geelong region.
Posts: 944
Hi Peter,

As I'm a Pentax man this interested me so I downloaded the image and had a bit of a play with it in CS5 and also in Capture One which is my favourite raw converter, it was over exposed a lot but I guess that's not what the test was about.
Anyway what I did find interesting was that the star trails almost all pointed to the center of the image in a radial manner.
It was a lot less noticeable from the bottom middle up through the center but it was a bit unusual though. I've reprocessed it and included crops from all four corners and one from the center, I'm guessing this is what you also saw so it will be interesting to see further shots from this with as you say a better calibration first.

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