Quote:
Originally Posted by RobF
Sure you could dither between each L,R,G,B frame, but you're going to be stacking all the L's, R's, etc so not any point dithering on every filter change - better to do it so that each LRGB is dithered relative to last, if that makes sense? Saves having to wait for guiding to settle for 3 lots of dithering, which on a cheapish chinese mount is often around 15-20secs, if that makes sense?
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OK - I have no trouble with my mount settling after dithering.
It's an NEQ6 & I have ADM saddle plates & parallax tube rings
with a 1.25" astro physics counter weight bar.
You can see it in my flickr photos.
That makes it much more stable.
It only takes 2 seconds to stabilise after dithering 4 pixels.
Therefore I dither every frame to cancel out hot pixels & get a smoother background.