Quote:
Originally Posted by ZeroID
I've used an Astronomik CLS, means longer exposure times to compensate for the blocked photons but works ok for Sodium and Mercury vapour lighting. May depend if your local lighting is being upgraded to led. Quite different spectrum on those and a lot harder to block.
There are a pile of others but I haven't tested any. Others will chip in with their recommendations.
|
Brent.
+1 for the Astronomic CLS; best filter I have ever used , and on all types of objects even Jupiter!
bigjoe.