Quote:
Originally Posted by mithrandir
Depends on where you are Philip. Here in outer Sydney 30 secs can be enough for light pollution to flood the image. I'm waiting for a clear night to see if a CLS filter makes much difference.
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Hi Andrew
Am able to guide and create 20 minute subs at ISO400 with a CLS filter from just outside of CBD. Prior to CLS, I would blow in 30 seconds..a pointless exercise from my location but you can process it out?