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Baader Planetarium 25 mm Polaris I Illuminated Guiding Eyepiece

Baader 25 mm Polaris I Illuminated Guiding Eyepiece


Illuminated 25 mm Polaris I Measuring & Guiding Eyepiece with adjustable universal female T-2 thread. Attaches directly to any accessory with a male T-mount thread. 1.25" and 2" nosepiece adapters are also available for use with same sized eyepiece holders. Includes batteries.

    • Focal Length: 25 mm
    • Apparent FOV: 40º
    • Eye Relief: 15.5 mm
    • Field Stop Diameter: 18 mm
    • Lens Elements: 3 in 2 groups
    • AR Coating: Phantom Coating® Group
    • Threaded for Filters: Yes
    • Outer Diameter: 36 mm without illumination housin
    • Inner Connection (Lens Side): T-2 (M42x0.75) thread
    • Specialty: Cross Aim
  • Weight: 5.75 oz. (0.163 kg)

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