Colour Magic 2-inch Duo-band C1 (Hα+OIII) Alt-Az Mount developed in partnership with Simulation

developed in partnership with Simulation Curriculum offers a simple yet powerful planetarium interface

( Riser block sold on our official website is not intended for this purpose

Petzval Design

1/10th wave mirror is tested with an interferometer to ensure quality

) 82 Eye Relief (mm) 19 Weight (lb / oz) 1

Colour Magic 2-inch Duo-band C1 (Hα+OIII) Alt-Az Mount developed in partnership with SimulationThe Colour Magic C1 2 inch Duo band filter is designed for advanced deep sky astrophotographers who are shooting emission nebulae, like the Orion Nebula (M42), Lagoon Nebula (M8), or the Ring Nebula (M57). Unlike most filters, which record a wide swath of the visible light spectrum, this filter only records the specific, brightest colors of glowing hydrogen gas (the H or Hydrogen alpha) in your cameras red channel, and oxygen gas (the O III or Oxygen