Since April 2017, the main scope is a Celestron 11 EdgeHD with a clear aperture of 11″ (279 mm). This scope can be operated at f/10 and f/7 with Celestron Edge reducer. There is also a prime focus option (Hyperstar configuration) at f/2.
At f/10 and f/7, the Celestron 11 EdgeHD features a flat and fully corrected field with 42 mm diameter. In Hyperstar configuration, the fully corrected field measures 27 mm in diameter.
Instead of the standard focuser a Starlight Feathertouch Microfocuser motorized with an Optec FocusLynx FT20 is installed.
Some impressions from the Celestron 11 EdgeHD: