Martin, › Forums › Telescopes › Secondary mirror offset for a newtonian reflector › Martin, 11 June 2017 at 1:20 pm #578290 Eric WatkinsParticipant Martin, thank you, clarifies that matter for me. This is going to be a trial run for a 20-22″ F:5.5 Newtonian, Surrier Truss mounted on a Paramount ME for CCD deep sky imaging. Cheers Eric imaging
