I'm looking for a "Pre-Meade" 6 0mm Etalon for double stacking (triple stacking experiment actually).
I do not need a blocking filter.
Additionally, I intend to machine a dedicated housing, so it can be cosmetically challenged. I do want a well performing etalon, and I'd like to have the T-Max tuning adapter.
Reasonable price paid based on condition of the unit.
Clear skies,
Ron Scarboro