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Masuyama 2" Eyepiece with 85° AFOV - 26mm # MOP-26

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Ultra-premium Masuyama eyepieces were offered briefly in the mid-1980s before going out of production a few years later. Since then, these legendary eyepieces have only been available - fleetingly - on the resale market. Now, after nearly 30 years, Masuyama eyepieces are back in production and updated with modern glass and multi-coating technology.

Coveted for their clean, high-contrast views on velvet-black backgrounds, Masuyama eyepieces incorporate a five-element "hybrid Plossl" design. They have much better performance towards the edge of the field and improved color performance compared to Plossls and other competing designs. Masuyama eyepieces achieve high contrast through a much smoother polish than nearly all premium eyepieces and through superior internal baffling in their long bodies.

The eyepieces are the signature design of the renowned optician Dr. Masuyama who designed many of the finest Japanese eyepieces of the 1960s and 1970s. Dr. Masuyama even designed the 100 mm focal-length eyepiece used for visual observing at the historic 60" telescope at Mount Wilson Observatory in California.

This 26mm focal-length Masuyama eyepiece with 2" barrel makes an ideal match for moderate to long focal ratio telescopes. With an 85-degree apparent field of view, this eyepiece offers superb contrast for observing the Moon, planets, double stars, and deep-sky objects. When their rubber grips are removed, a pair of these Masuyama eyepieces can also fit in many 2" binoviewers.

  • Legendary Masuyama eyepiece with 26mm focal length and 2" barrel
  • Incorporates latest glass and multi-coating technology
  • Provides ultra-high-contrast views of the Moon, planets, and deep-sky objects
  • Ideal for long focal ratio telescopes
  • X mm long and weighs 380g (13.4 oz)


Note: Occasionally, the product you receive might have a slightly different cosmetic appearance or labeling than what is shown. This can often change from batch to batch according to the whims of the manufacturer. However, you will always receive a brand new, original product as described above.

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Filed under: Eyepieces & Accessories