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A little better after following your advice Mike
Mike. The attached captured last night at 7 pm , again 700 frames . No extension USB cable and the 240 v flex kept well away from the scope. Conditions wasn't as steady, but I think you will agree there is an apparent difference. I'm still having difficulty in detecting perfect focus. I use a long 2x Barlow with the DMK. The focuser focuses the image reflected from the primary and secondary onto the Barlow lens. What I cannot understand is the distance from the lens of the Barlow to the face of the chip in the DMK, is a predetermend set distance. I would have thought the distance from the Barlow lens to the chip face to be very critial. The letters r p c represent a code I use . R= Registax P = Photoshop and C= colour added.
Any comments?
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