Explore Scientific Alt-AZ Twilight I Mount Collimator start to reveal structures within

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whichever sized optical tube used

Primary and secondary mirror of quartz glass with 94% enhanced reflectivity:

The RASA 11 V1 was the first RASA telescope developed by Celestron and designed with a Feathertouch fine focuser

Explore Scientific Alt-AZ Twilight I Mount Collimator start to reveal structures withinThe Explore Scientific Twilight I is a light to medium duty alt azimuth astro mount designed for quick and easy setup and its suitable for most small to medium sized refractor telescopes. Lightweight, fast Newtonians will also pair up nicely with the Explore Scientific Twilight I mount. As long as your telescope does not exceed 7kg and has a Vixen Style universal dovetail bar for mounting, you are good to go. The Twilight I alt azimuth mount head is