Officina Stellare 3" Flattener for Pro RC Telescopes
Officina Stellare 3" Flattener for RC Scopes
This high performance field flattener offers up three inches of clear aperture and a 60mm field. It is an air-spaced doublet and will work wonders on your Officina Pro RC Ritchey-Chretien telescope.
Questions & AnswersAsk a Question
Can you provide me with the flange focal distance for this flattener/reducer? Thanks!
According to Officina Stellare, this flattener actually has two optical configurations based on customer requirements for back focus and corrected image circle. The exact flange focal distance varies slightly by telescope aperture and flattener placement