Quote:
Originally Posted by SteveInNZ
Matthew,
That 0.93 pixel is at 2.3m focal length, correct ?
How big are the pixels on your guide camera and imaging camera and what is your seeing ?
Just trying to put your setup into some context.
Steve.
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My Arc seconds per pixel is 0.44 - so for my very average seeing conditions I am way overseeing the sky, that is why I dial down the sensitivity on the PHD guide algorithm to 0.93 pixel movement - which is still about .4 of an arc second.
I use modded Canon 40D DSLRs and the guide chips is a Meade DSI II Pro Mono - so I will have to look up the size of the pixels (40D
32.6 µm² and DSI II
8.3 microns (w) x 8.6 microns (h)) but at guess I would say - they are too small and the electron wells are too shallow to be optimal for my gear and location!
