Askar ColourMagic Ultra 2" Duo-Band E1 & E2 Filter Package - CM-DUO-E-PKG Celestron AVX Telescopes providing an extra-wide stance for

providing an extra-wide stance for improved stability

The fully multi-coated lenses and BaK-4 prisms maximize light transmission and quality for remarkably bright

The base has a wide diameter of 2 inches for 360 degree precision pan measurement

Back-end Adapter: M42x0

For 30 years

Askar ColourMagic Ultra 2" Duo-Band E1 & E2 Filter Package - CM-DUO-E-PKG Celestron AVX Telescopes providing an extra-wide stance forThe Askar ColourMagic Ultra E Filter, as its name suggests, boasts "Ultra" halo control capabilities. With the ColourMagic Ultra E Filters, you can capture high quality deep sky images even in areas affected by urban light pollution, atmospheric airglow, or other light sources. The narrower bandwidth of both filters (one at 3nm & the other outside of 3nm) and high transmission significantly enhances image contrast, making it easier to reveal subtle