Baader Hyperion Finetuning Ring M48 - 28mm

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Complete your telescope kit with the Baader Hyperion 14mm Fine Tune Ring.

  • Extends the focal length of your Hyperion eyepiece and enhances its magnification range!
  • Gain the value of a second eyepiece without having to invest in an entire new one!
OUR PRICE $35.00

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    This Baader Hyperion Finetuning Ring M48 - 28mm spacer ring fits between the negative lens and the 2" barrel, so that it matches your Hyperion eyepieces (of all focal lengths) to your needs.


    Hyperion Eyepiece Focal Length Chart

    Eyepiece Type Effective Focal Length (mm) Focal Length with 14mm Finetuning Ring Focal Length with 28mm Finetuning Ring Focal Length with 14mm & 28mm Finetuning Ring With 2" Baader Filter Without first group of lenses
    Baader Hyperion 24mm 24 N/A N/A N/A N/A N/A
    Baader Hyperion 21mm 21 17.6 15.5 14.0 18.5 32.2
    Baader Hyperion 17mm 17 13.1 10.8 9.2 14.6 21.8
    Baader Hyperion 13mm 13 10.8 9.2 8.1 11.7 22.9
    Baader Hyperion 10mm 10 8.4 7.1 6.1 9.1 22.4
    Baader Hyperion 8mm 8 6.0 5.0 4.3 6.9 21.8
    Baader Hyperion 5mm 5 4.0 3.2 2.6 4.3 22.5


    Full Specifications



    Optical Tube Length


    Inner Diameter / Clear Aperture

    45mm (1.7")

    Outer Diameter

    50.8mm (2") 

    Inner Connection (lens sided)

    M48 Thread

    Outer Connection (lens sided)

    2" Barrel

    Inner Connection (eyepiece / camera sided) 

    2" Barrel

    Outer Connection (eyepiece / camera sided) 

    M48 Thread

    Adaptable to 

    Only NOT suitable for Morpheus® 76° Eyepieces 

    Compatible brands

    Baader Planetarium

    Type of Adapter




    Product Code: BAA-2958228


    Baader Planetarium is a renowned manufacturer of high-quality astronomical equipment such as telescope and camera adapters, filters, eyepieces, and laser collimators. Their products are distinguished by their exceptional quality and innovation, which has earned them the admiration of both amateur and professional astronomers.
    Their unwavering commitment to providing outstanding customer service and support has helped them establish a loyal customer base worldwide.
    With a team of skilled engineers and technicians, Baader Planetarium continues to pioneer new and innovative products that cater to the evolving needs of the astronomy community.

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