Skip to content

UPS Shipping Delays / COVID-19 Response Statement

Baader Planetarium 25 mm Polaris I Illuminated Guiding Eyepiece - POL-1


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 housing
  • Inner Connection (Lens Side): T-2 (M42x0.75) thread
  • Specialty: Cross Aim
  • Weight: 5.75 oz. (0.163 kg)