This massive 80mm focal length ocular opens a new viewing experience for large refractors and Schmidt–Cass owners.
The striking celestial views remind one of viewing through a similar aperture dobsonian telescope. The 3" format goes far beyond any current 2" ocular, allowing low magnification and wide–field view.
The Masuyama 80mm features a unique 3 element design producing excellent image sharpness from the center to the edge of field. Viewing through a C–11 at 35X yields over a 1.5° AFOV.
At a 52° apparent FOV, the huge image combined with the amazing lowered magnification creates a feeling of a much larger area of space being viewed than the number 52 would suggest.
Each hand–made Masuyama is carefully manufactured in Tokyo. It is fully tested before shipment and has a serial number. Presently, there are less than 25 units available. All air–to–glass surfaces are multi–coated. A large "tire" around the bottom half of the eyepiece is covered with a rubber rollet for a secure hand–hold for this massige 3.74 lb. eyepiece. The unit stands 212mm tall.
Carrying Case Included
We have a 3" star diagonal to offer this rich–field experience to owners of these popular telescopes. The mirror diagonal includes a 3" sleeve adapter that screws onto your scope. Slide in the star diagonal, then the Masuyama 80mm and tighten all the screws.