1.25" Telescope Zoom Eyepiece with Adjustable 10-30mm Focal Length

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  • Model: 10-30mm Zoom Eyepiece
  • Shipping Weight: 0.22Kgs
  • 3 Units in Stock

This is a telescope zoom eyepiece with 10-30mm adjustable focal length, large eye lens diameter (22mm), and Bak4 optical glass with fully multi-broadband coated green lens. It is ideal for use on telescopes/spotting scopes to achieve varying magnification levels.


Main Features:

  • Focal length: 10-30mm adjustable

  • Standard 1.25" fitting diameter

  • Eye lens diameter: 22mm (0.87 in.)

  • Fully multi-broadband coated green lens for excellent image contrast and light transmission

  • Fold-down rubber eyecup

  • Comfortable eye relief.

  • Apparent field of view: 33 degree (at 10mm), 41.5 degree (at 20mm) and 50 degree (at 30mm)

  • Metal construction.

  • Weight: 185g (0.4 lb.)

  • Dimensions:

    • Overall length: 106mm

    • 1.25" tube length: 32mm

    • Main body diameter: 43mm

Note: A telescope's magnification is determined by dividing the focal length of the telescope by the focal length of eyepiece. For example, if this zoom eyepiece is used in the Nipon 800x80 scope which has 800mm focal length, it will achieve a magnification range from 800/30=26x up to 800/10=80x.



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Nipon Scope & Optics is a trading name of Nipon Optics (UK) Ltd, a company registered in England & Wales, No. 07291656.