Quote:
Originally Posted by ChrisV
An interesting thread for me, as I've been waiting for the clouds to bugger off so I can have my first go at RGB on a mono camera.
I was going to do just RGB rather than LRGB as I thought the larger bandwidth through the L filter would increase the noise. Plus more star bloat through the L filter. Maybe?
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I image under Sydney B8 with an 8” f5 ( 1050mm fl ) so LP gradients are off the Richter scale
With Luminance for broadband targets I keep my subs short , in the order of 30 sec and try to gather a minimum of 2 to 3 hours on galaxies and emission nebula, the more the better. Luminance provides all your fine detail. I’ve compared RGB to LRGB and LRGB wins hands down with my experience. Others will disagree !!
I also use 30 sec subs for RBG as well
I’ve been getting good results from Ha LRGB too ( Ha are 2 min subs using a 3mn Antlia filter )
My camera is the 2600MM set at low gain or Gain 0 for maximum well depth 50K and Dynamic Range, cooled to -10C.
Here’s a Ha LRGB of M20 captured last year ( 30 sec subs LRGB and 2 min subs Ha , total of 8 hours integration )
Obviously no moon around !!
Cheers
Martin