Askar ColourMagic Ultra 2" Duo-Band E1 Filter - Ha + OIII - CM-DUO-E1 SCT Diagonal Antares 2" Mirror Diagonal

Antares 2" Mirror Diagonal

it can be directly threaded onto the 1

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Askar ColourMagic Ultra 2" Duo-Band E1 Filter - Ha + OIII - CM-DUO-E1 SCT Diagonal Antares 2" Mirror DiagonalDesigned for deep sky imaging with color astro cameras, the Ultra E1 filter, as the name suggests, includes "Ultra" halo control capability. Askar Ultra E1 duo band filter has an extremely narrow bandwidth, and an ultra high transmittance of over 85% at its center wavelength (500. 7nm and 656. 6nm). It can effectively eliminate the influence of light pollution. Even if you are in an area seriously affected by light pollution, pictures taken with the