Optolong L-Extreme dual bandpass (7nm ha, 7nm o3) light pollution filter 2” variety. An incredible filter that rarely produces star halos. The filter itself is in pristine condition with no physical damage and little dust, as well as coming with its protective case.
Selling For: $300 + Shipping
Alternatively pickup is available in Sydney, Northbridge.
I’m also selling a ZWO filter drawer that fits this 2” L-Extreme for an extra $50.
Last edited by CharlieM; 01-09-2023 at 04:36 PM.
Reason: Typo on price