[APML] Strange Star Artifacts in Takahashi FSQ-106N Image

["Thomas W. Earle" <twade@bmi.net>]

I recently got all my Comet Machholz images back from development.
They turned out really well.  I'll have them scanned probably in the
next month or so.  In the interim, I discovered that my Takahashi
FSQ-106N has a problem with bright stars.  I have included the
following link for people to look over.

http://www.northwest-landscapes.com/html/StrangeStars.html

Does anyone have any idea what could be causing this strange
phenomenon?  The "radial shadows" appear to "rotate" with the field
of view.  For example, the shadow in the lower left star of Orion's
belt is oriented southwest to northeast, the middle star's "shadow"
is oriented west to east, and finally the upper right star is
generally northwest to southeast.  It is very strange indeed.  Could
I have a bad field flattener?  Has anyone else experienced this
strange behavior with bright stars?

Thanks in advance,

Wade


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