Slit width.

Forums Telescopes Dual Scope Mounting Slit width.

Dr Paul Leyland

My 120mm refractor / autoguider is mounted on top of the 400mm Dilworth, all inside a dome. As long as I am observing reasonably close to the meridian the scopes are aligned along the slit, not across it. Observing extremely close to the zenith results in the 120mm being hidden behind the slit shutter.