Aim to the next generation standard.The birth of the new eyepiece from Nikon.Flat and wide field of vision and high eye points for easy viewing.The elastic grommets make it easy to see through and prevent outside light from entering, and the blackout hood allows you to enjoy comfortable stargazing.

With a 72° viewing angle, you can get a wider field of view with the same magnification, and enjoy an impressive space of the universe.The eye relief is not a focus on numbers, but the optical design prioritizes performance, and the glass barrel design takes into account ease of use to ensure the distance from the eye point is almost consistent. It also removes exit pupil aberration, which greatly reduces the "blackout" and "colored" when your eyes are offset from the eye point and improves the usability.Advanced optical design combines wide vision and image flatness.Works well with the bright F# of the combined astronomical telescope objective optics system.It has improved the perimeter image without compromising the center image, and the best reduction in image curvature and non-point separation.In order to eliminate harmful stray light from observation, it has been placed in a suitable location using blackout apertures, blackout lines, black paint, etc. The lens surface is multi-coated to reduce harmful reflections and improve transmittance.The mounting diameter is 1.3 inches (31.7 mm).Can be used with various astronomical telescopes.It is also a focal point design where the flange is focused. Please confirm that the eyepiece you are using is 1.3 inches (31.7 mm) diameter.The gloves are made of silicone rubber that is gentle on the skin.The knurling design is reminiscent of the Nikkor lens group.Uses silicone rubber blackout hood to prevent outside light from observing high magnification or parking lots. Unlike regular "horn" shapes, it has a unique shape that can be used by eyeglass users and the flexibility to resist vibration. Removable and removable when not needed.Splash proof construction with rubber seal to prevent night dew from entering.TSA-1 telescoping attachment (sold separately) supports "digiscoping" shooting. Compact digital camera bracket FSB series for collimated shooting. It can be used for Moon Planet photography, which can be used for more fun.Eyepiece innovation converter "EiC-16" (sold separately) for NAV-SW eyepiece performance. The "EiC-16" is a converter that converts magnification to 1.6x.Unlike traditional Barlow lenses, the optical design suitable for the NAV-SW series increases magnification without compromising center sharpness and further enhances image flatness.Installation is 31.7mm size, chuck method with low lead error.