I sold an LPR and an OIII filter on astromart, they are Lumicon but unmarked on the ring. In order not to ship the wrong filter to the buyers, I'd need to identify them.
Unfortunately it is cloudy here, so I can't check.
One has a redish hue, the other a greenish. The redish one cuts off streetlights much stronger than the greenish one. In fact through the redish filter, the streetlights (Natrium) turn bloodred.
Which one would be the OIII?
Tx for the help and forgive my visual ignorance. I am a photographer
Dodi
Unfortunately it is cloudy here, so I can't check.
One has a redish hue, the other a greenish. The redish one cuts off streetlights much stronger than the greenish one. In fact through the redish filter, the streetlights (Natrium) turn bloodred.
Which one would be the OIII?
Tx for the help and forgive my visual ignorance. I am a photographer
Dodi
