Quote:
Originally Posted by cometcatcher
Great pic still.
I think though that the scope is no longer "fast" when shooting narrow band.
One question though, how do you know when you have enough total imaging time? Doesn't longer time mean the image can be pushed harder to bring out faint details ad infinitum?
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The filter passes better than 90% of NII so for that wavelength it is still fast.
The Moon was up so I decided to take forty 8 min frames while I slept to get an idea of what would pop out.
Once I have the image train stabilizer I will see what a bunch of 16 min or even 32 min frames gets me.
All that matters is more photons more images. I want to see the really dim stuff!
Below is a quickie in NII and HA of the SMC. NII to red and HA to green. No flats with near full moon.
Bert