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Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws
Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws
Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws
Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws

Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws

by Kowa
SKU KOW-TSN-AS1.25K
$30.00 - $30.00
$30.00
$30.00 - $30.00
$30.00
Price Match Policy!
  • Adapts Kowa PROMINAR scopes to accept standard 1.25" astronomy eyepieces
  • Compatible with TSN-99, TSN-88, TSN-77, and TSN-66 series scopes
  • Knurled screws allow a quick change of the eyepiece
  • Not for the TSN-550 series
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  • Description
  • FAQ
  • Specifications
  • Warranty

  • Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter for PROMINAR, Knurled Screws

    The Kowa TSN-AS1.25K 1.25" Astronomy Eyepiece Adapter combines 1.25" astro eyepieces with Kowa's TSN-99, TSN-88, TSN-77 and TSN-66 PROMINAR series spotting scopes, so you can use the 1.25" eyepieces you already own on these scopes.

    Unlocking 1.25" Astronomy Eyepieces for PROMINAR Scopes

    The TSN-AS1.25K takes the place of the Kowa eyepiece and accepts a 1.25" astro eyepiece.

    • Compatibility: TSN-99, TSN-88, TSN-77 and TSN-66 PROMINAR series spotting scopes.
    • Important Exclusion: Kowa excludes the TSN-550 series.

    Knurled Screws for Fast, Tool-Free Swaps

    The TSN-AS1.25K holds the eyepiece with knurled screws, which Kowa says allow a quick change of the eyepiece. For very short focal length eyepieces, Kowa offers the TSN-AS1.25G with grub screws.

  • Which Kowa spotting scopes are compatible with the TSN-AS1.25K adapter?

    Kowa lists the TSN-AS1.25K for the TSN-99, TSN-88, TSN-77 and TSN-66 PROMINAR series spotting scopes. The TSN-550 series is excluded.

    Will the Kowa TSN-AS1.25K adapter work with my TSN-553 PROMINAR scope?

    No. Kowa excludes the TSN-550 series, which includes the TSN-553.

    How does the Kowa TSN-AS1.25K secure the eyepiece?

    The adapter uses knurled screws to hold the 1.25" eyepiece barrel. Kowa says they allow a quick change of the eyepiece.

    For birding with my TSN-88 scope, can I use the Kowa TSN-AS1.25K to switch from a wide-field to a high-power eyepiece?

    You can change between 1.25" eyepieces of different focal lengths, and Kowa says the knurled screws allow a quick change of the eyepiece.

    What is the advantage of using the Kowa TSN-AS1.25K adapter instead of Kowa's own eyepieces?

    The adapter lets you use the 1.25" astro eyepieces you already own on a TSN-99, TSN-88, TSN-77 or TSN-66 PROMINAR scope.

  • UPC 4987646102205
    Warranty Kowa Limited Lifetime Warranty to the original owner (authorized North American retailer)
  • Kowa Limited Lifetime Warranty