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Hi Peter,
Having just started looking into my astro imaging, and noticing some horrific Vignetting, I am after a way to take my flats to counteract this.
I am using a Celestron Nextstar 8SE SCT and the Orion ShortTube 80.
Would you be able to let me know what I would need from you and cost to get rid of those terrible dark corners.
Regards
Sam
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