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Old 07-12-2021, 12:00 AM
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Joshua Bunn (Joshua)
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Joshua Bunn is offline
 
Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,464
Hi Ken,
I Think you will find this Is a dust doughnut, the dust will be on a Filter or the sensor cover glass. A flat frame should fix it, or cleaning the optical train.


Josh
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