Hi All
Thanks for your prompt replies.
Looks like the winner is QHY5! I notice that the active pixel area is about the same as the DSI II which I use for imaging, so Robin, I will see what the DSI II looks like for guiding. Pixel size is about 2/3 that of the DSI II which I suppose could be an advantage. Good news that it is compatible with PHD and will plug straight into the HEQ5Pro guide port.
I am in Sydney so where is the best place to source a supply of the QHY5
and about how much could I expect to pay for it?
Cheers Peter
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