Looking for 1.25" 6nm SII Astronomik narrwband filter
Hi all,
I currently got both a HA as well as an Oiii Astronomik filter and like to complete the set with the respective 6nm SII filter.
Needs to be:
- 1.25"
- Astronomik
- 6nm
Who's got one un-used/lying around and happy to sell to me?
Many Thanks,
Mathias
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