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Kasai Trading Co. 1.25" AstroPlan Eyepiece - 7.5mm

5.0 (1 Reviews) Read Reviews Write Review
Brand Kasai Trading Co.
Part Number K-AP7.5
Availability available

Product Info

Manufacturer Description

The Kasai Astroplan eyepieces are excellent all-round eyepieces, especially for the discerning lunar or planetary observer. They combine the crisp definition of orthoscopic eyepieces with good field correction over a larger 50-deg apparent field of view. While these are good performers even at shorter focal ratios, they really come into their own with sharp, crisp, contrasty views in long focal ratio scopes.

Superior lens polishing with multi-coating on all internal air-glass surfaces (so these are FMC), a modern 5 element design, edge blackened optics, engraved lettering, end caps, and standard filter threaded barrels attest to the excellent craftsmanship of these Japanese eyepieces. The body of the eyepiece is made from strong, lightweight aluminum and features a knurled rubber ring, while the 1.25" barrel is made from chrome-plated brass.

These optical characteristics coupled with their small size make these Kasai AstroPlan eyepieces perfect for visual observation (especially in binoviewers) as well for afocal projection photography.

Reviews

5.0 (Based on 1 Reviews) 0% of reviewers recommended this product.
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    1. Guest

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      User Notes:
      Review by toby of Australia.
      1364083200
      Mar 23, 2013

      5.0 Good for double stars

      Pros:

      Accurate,Easy to Use,Quality Lenses,Compact,Strong Construction,Lightweight

      Cons:

      Comments:

      Yes, it has poor eye relief and a fairly narrow field, but construction and lens is of very high standard.

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

      This review was provided courtesy of AgenaAstro.com

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      Specifications

      Apparent Field of View 50°
      Barrel Size 1.25" (31.7mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 42x60mm
      Coatings Fully Multi-Coated
      Height (without Eye Guard) 40.1mm
      Max Width 36.2mm
      End Caps 2
      Eye Lens Diameter 7.9mm
      Eye Relief by Design 6.4mm
      Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6)
      Focal Length 7.50mm
      Lens Elements 5
      Lens Groups 3
      Rubber Eye Guard No
      Blackened Lens Edges Yes
      Manufacturer Kasai Trading Co.
      Eyepiece Focal Length 5.1mm - 10mm
      Eyepiece Field of View Up to 50 degrees
      Eyepiece Series Kasai AstroPlan
      Barrel Type Smooth sided
      Eyepiece Weight 2.50oz (70.87g)