Askar ColourMagic Ultra 2" Duo-Band E1 & E2 Filter Package - CM-DUO-E-PKG Celestron AVX Telescopes The base has a wide

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

It runs on a power source of 7

The matte projection area allows lateral detection of the reflection and makes main mirror collimation easy - even with large telescopes

Back-end Adapter: M42x0

Askar ColourMagic Ultra 2" Duo-Band E1 & E2 Filter Package - CM-DUO-E-PKG Celestron AVX Telescopes The base has a wideThe 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