Agree get a mono guide camera definitely (far more sensitive without a Bayer mask)
On the QHY5 as a guider - a question on its compatability with current releases of PHD. The current release (V1.9.0) doesn't have this CCD natively listed, and on their forums I see folk saying manipulate Windows DLLs when every you install a new version of PHD and for G11 owners switch the 4 1K resistors to a single 51 Ohm resistor etc - is it ready to go out of the box - or is alot of fiddling need to get this to work properly?
Alternatively the DMK 21 Mono USB is $460 camera that is only .3 Mega Pixels (Q/E not specified)
Orion Starshoot Autoguider is $370 for a 1.3 Mega Pixel CCD - Q/E not specified
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