Quote:
Originally Posted by AdamJL
I've had good success with Cloudy Nights, here in Sydney and at my usual go-to dark site.
Nice image. Amazing how sensitive this camera is. Any reason you chose gain 100? From what I've read, generally it's Gain 0 for broadband, and Gain 100 for filters?
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Thanks Adam
Yeh I was really pleased with the image with just a few subs
I’ve used Cloud Free Night ( CFN ) for over 3 years now and it use to have to local forecast model Access C from meteorological weather stations which were very accurate forecasts. Now with only GFS models ( US ) it’s no where near as accurate , in fact to test it out , in the Meteorgram I punched in Sydney looked at the graph , then punched in Liverpool , looked at the graph , and they were entirely different. Did this every 4 hours through the day and night over a couple of days and yep entirely different forecasts. Sydney’s only 32km from Liverpool , not 150km
I still use it but don’t rely on it like I use to
As far as Gain is concerned on the 2600MC, l like to dabble a bit as I’m still learning about this new camera ( I’ll need a year to nut it out properly) at Lowest Read Noise gain 100 , you lower your read noise a bit but still get good dynamic range , so actually gain 0 and gain 100 are very similar , however on gain 100 you only get to 18,000 e- FW whereas with gain 0 you reach almost full well at 50,000 e-
So Gain 0 is suitable for both light polluted and dark skies as well as Narrowband
Still experimenting
Martin