| #PMC 80 SET - Cassini 80mm x FL 800mm Spherical Primary Mirror and Cell with 31mm x 22mm Secondary Mirror and Cell 80mm Spherical Primary  Mirror +  Cell 800mm focal length
 31mm X 22mm Secondary Mirror +  Cell
 Primary and Secondary Cell Specs:
 OD (Outer Diameter) of Cell: 122mm
 ID (Inner Diameter) of Cell: 118mm
 Collimation Dot
 Diffraction limited optics(1/4 wave in Sodium Light)
 Plate Glass (Both Primary & Secondary)
 Aluminized(92%) and SiO(Quartz Overcoat)
 Heavy Duty Push/Pull Collimation Screws on back of Primary Cell
 4 Vane Spider Cell for Secondary (31mm X 22mm)
 Secondary average obstruction: 25% (linear) app 6% total area.
 Resolving power in arc seconds: 1.4
 
                                        
                                          | Cassini 80mm Primary and Secondary Mirror Sets 
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                                          | #PMC 80 SET - Cassini 80mm x FL 800mm Spherical Primary Mirror and Cell with 31mm x 22mm Secondary Mirror and Cell M.S.R.P $24.95
 
  
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