Very blustery evening, after a while sorting out a shifting collimation problem (see pics at the end), managed to get a couple of avi’s done before the clouds rolled in.  Shot through 12″ LX200R with a new DMK  black and white camera, used a UV/IR block filter for this test at a native f10.  250 frames out of 1200 shot, stacked in AVI stacker.

IDL TIFF file

closeup;

JUPITER_31_1_2013

Next chance is to tweak collimation a little more and shoot at f20 of f25 through colour and IR pass filters.  Collimation is severely affected by focus position on this scope, the shots below show what happened after refocusing after collimation, this needed some severe work to recollimate.

collimation out

collimated

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