Quote:
Originally Posted by Shiraz
Thanks for the info - that method similarly uses a non-linear process to get rid of hot pixels and it overcomes residual fixed pattern thermal noise by spreading it around. I have not tried to use dithering yet with the H694, even though phd/Nebulosity supports it - the last thing I want my EQ6 to do is deliberately go off target, since it can take a long time to guide back on accurately at ~1 arcsec/pix. Regards ray
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The original pause after dither move in Astroart was only about 3sec and this was not long enough at all, so Fabio re-wrote that piece of the camera control software for me and increased the pause to 6 sec. This was better but still not long enough for 50% of dither moves, particularly if the move was in Dec, so he has since lengthened it to 15sec for me - this should do it
and I can set the max pixel movement to just 2 pix, which is enough for dithering to work.
Mike