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Old 14-08-2008, 09:05 PM
Prickly
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Prickly is offline
 
Join Date: May 2007
Location: Canberra
Posts: 347
QHY5 - colour or mono

Im planning to get a QHY5 autoguider and trying to work out which way to go: colour or mono. I would also like to use it for looking at planets. Probably it will get more use with autoguiding I suspect.

The mono is more sensitive and with filters etc you can probably do nice planetary shots. But the filters / filter wheel is quite expensive I gather (Im guessing maybe around $700 or so?).

On the other hand the colour seems to do some pretty amazing planetary imaging and even though it cant quite match in resolution doesnt probably suffer from planetary rotation so much presumably.

See here some colour images.
http://www.qhyccd.com/QHY5.html
(OK - yes an 5 inch apo too)

Overall Im thinking the mono should be best but I look at those jupiter images and I just wonder. Probably much easier than all the filters etc.
But the sensitivity may not be so great - has anyone tried a colour QHY as an autoguider? Id be using a C90. How do you think it would go?

I thought a post to the group might help sway my decision in one direction.

Cheers
David
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