Dismiss Notice
New Cookie Policy
On May 24, 2018, we published revised versions of our Terms and Rules and Cookie Policy. Your use of AstronomyConnect.com’s services is subject to these revised terms.

More Views

Kokusai Kohki 1.25" Fujiyama HD-OR Orthoscopic Eyepiece Set (Japan) - 8 Eyepieces

5.0 (2 Reviews) Read Reviews Write Review
Brand Kokusai Kohki
Part Number -
Availability available

Product Info

Manufacturer Description

Kokusai Kohki continues the tradition of offering the highest quality Japanese made Orthoscopic eyepieces with the introduction of their brand new FUJIYAMA HD-OR eyepiece lineup. Fujiyama HD-ORs are hand crafted at their Tokyo factory and individually inspected before shipping.

Named after the Japanese name for that sky reaching symbol of Japan - Mt. Fuji - the FUJIYAMA HD-ORs come standard with multicoatings on all air to glass surfaces (cemented lens surfaces are uncoated), giving them extended light throughput, and brighter images overall, as compared to Kokusai Kohki's previous volcano-top OR eyepiece lineup. And all lenses are edge blackened to reduce internal light scatter and reflections to an absolute minimum.

The entire Fujiyama lineup is parfocal, accepts standard 1.25" astronomy filters, and comes with plastic eyepiece caps. The chrome barrels of the Fujiyama HD-ORs are smooth-sided, and they have removed the helpful, but also often annoying, safety groove.

Solid construction, bright, clean and sharp views throughout a fully corrected 42 degree AFOV with sharp field stops makes the Fujiyamas perfect for every type of viewing. They are also an exellent match with high end apochromats for hard core planetary, lunar, solar and double star viewing.

Each eyepiece carries a one year Kokusai Kohki parts and labor warranty.

Reviews

5.0 (Based on 2 Reviews) 100% of reviewers recommended this product.
Rating Distribution
Sort by
  • Date
  • Rating
  • Useful
    1. Guest

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by Jason
      1544004367
      Dec 5, 2018

      5.0 great set of orthos

      Pros:

      Cons:

      Comments:

      If you're reading this, you likely already appreciate why a good set of orthos can enhance observing small objects like planetary nebula, lunar features, and the planets. These are highly regarded Japanese orthos and they deliver a great high contrast image, without glare or distortion. I’m not convinced that I like the flat tops better than the older volcano top design, but the glass inside delivers!

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    2. eta Carinae

      eta Carinae New Member

      Skill Level
      Unknown
      Time with Product
      Unknown
      User Notes:
      Review by JN
      1486236898
      Feb 4, 2017

      5.0 Fujiyama HD Orthos

      Pros:

      Cons:

      Comments:

      I had given my older set of this line to one of the kids and I’ve missed them ever since. So I ordered the complete set recently and it was good to have them back! I compared them with TV Delos eyepieces in both an f7 80mm apochromat and a 12” f5 Dob and the results were stunning. On the Moon contrast was so very sharp with shadows completely black: no scattered light. Contrast on fainter objects like nebulas revealed greater internal detail so low level contrasts were better rendered as well. Although I love the Delos series and need it for wider FOVs the Fujiyama HDs give the best performance at least down to f5.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

    Sort by
    • Date
    • Rating
    • Useful

      Specifications

      Apparent Field of View 42°
      Barrel Size 1.25" (31.7mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 37x60mm
      Coatings Multi-Coated
      Design Abbe Orthoscopic
      End Caps 2
      Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6)
      Lens Elements 4
      Lens Groups 2
      Parfocal Yes
      Rubber Eye Guard No
      Blackened Lens Edges Yes
      Manufacturer Kokusai Kohki
      Eyepiece Field of View Up to 50 degrees
      Eyepiece Series KK Fujiyama HD Ortho