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View Full Version here: : [SOLD] Optolong 2" L-eXtreme filter


Martin Pugh
29-09-2021, 12:37 PM
Hi there.

As this filter is designed to combat severe levels of light pollution, and having used it to see the result, I dont believe I need it at my particular site.

Its a few months old, perfect condition obviously and up for sale for $350 posted in Australia ($439 new).

cheers
Martin

Startrek
29-09-2021, 02:27 PM
Martin,
As your aware it’s primarily a OSC narrowband filter 7nm Ha 7nm Oiii , more so than a bonafide LP filter
I still use mine under Bortle 3 /4 at my South Coast Obs with excellent results Moon or no Moon

Cheers
Martin