Looking to sell this 2-inch Baader O-III Visual Nebula Filter #2458396. Condition is like new.
The filter is a 10nm visual narrowband filter designed to accentuate the contrast of emission and planetary nebulae.
Offered here for $150 + postage (outside of Adelaide). Retails around $220.
More info:
https://www.ozscopes.com.au/baader-o...-2-filter.html