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Telescope






FSQ-106 EDX II



 

Takahashi FSQ-106 EDX III f/5 Astrograph Telescope

    FSQ-106 New "Q" Flat-Field Super Quadruplet

 

Specifications

    Optical System Modified Four Element Double ED Petzval
    Effective Aperture 4.2" (106mm)
    Focal Length 21" (530mm)
    Focal Ratio f/5
    Image Circle 3.5" (88mm)
    Back Focus 7" (178mm)
    Length of Main Tube 420 mm or 16.7"
    Tube Diameter 4.9" (125mm)
    Tube Weight 15.4 lb. (7 kg.)
    Resolution 1.09" (28mm)
    Light Gathering Power 229X, Limiting Mag is 11.9
    Focal Length with Optional Reducer 15.2'" (385mm)
    F Ratio with Optional Reducer 3.6
    Image Circle with Optional Reducer 1.7" (44mm) - light intensity 60%
    Focal Length with Optional Extender 33.5" (850mm)
    F Ratio with Optional Extender 8
    Image CIrcle with Optional Extender      1.7" (44mm) - light intensity 60%
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