TS SD70Q APO
Playerone URANUS-C (IMX585)
I tested it.
Originally, this filter seems to be the category of the LP filter, but if you look at the permeability length
HA, Sii, OIII, HB filter, so I think it can be used as a gentle narrow band.
This time I tried it with nebula.
It feels good to pick up the blue signal.
Red is also perfect.
The stars of the stars are too tight, but there is also a combination with the telescope, so I want to Test with a reflective telescope next time.