Quote:
Originally Posted by alistairsam
Hi Brendan,
That looks really good. you mentioned they were at -30, but you've used darks. What would it look like without darks? would there be much of a difference? were your darks 900 secs well and did they have any noise in them?
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Yeah its a exercise in completeness mate the -30 darks are well.... pretty well clean

and there was very little difference in the calibrated to non calibrated, When i get home I will do a small comparison. I have to sort out my flats but due to the system im running at the moment having very little vingetting I can nearly get away with it. The qhy9 runs a mechanical shutter so i really need to dim down my setup
I plan on running at -35 to -40 during the winter months as last night it was at 75% power at -30 with a ambient of about 15 deg. So when that drops down another 10 deg, theoretically ill be able to push it further without stressing the system. This gives an increase in QE and of course even less noise!
Quote:
Originally Posted by strongmanmike
Yeh Brendan, I agree with Marc, this is a fine result, it's such an interesting area  ...and I am jealous of the sky time
Mike
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Mike its been raining for the past week,

and cloudy since Feb/march or blowing its arse out eigther or

I got one night, tonight is cloudy with rain increasing in the morning and about the same all the way though
I feel your pain!
Thanks David and Trevor for your comments. they are appriciated