Tele Vue 13mm Nagler Type 6 Eyepiece - 1.25" - EN6-13.0 Celestron X-Cel LX Eyepieces Waterproof and fully rubber armored

Waterproof and fully rubber armored

The high quality of Baader Planetarium filters permits stacking with no image degradation

Gives a very pleasing and high resolution image

and is backed by a manufacturer's lifetime of the product warranty

Tele Vue 13mm Nagler Type 6 Eyepiece - 1.25" - EN6-13.0 Celestron X-Cel LX Eyepieces Waterproof and fully rubber armoredAbout the TeleVue 13mm Nagler Type 6 Eyepiece 1. 25" The 7 element, TeleVue 13mm Nagler Type 6 design is based on the original patented Nagler design. This new 7 element TeleVue Telescope Eyepiece design update for the short focal length Nagler deserves its own designation. Using different exotic materials, coating processes and design ingenuity, Al has massaged more eye relief, contrast, and true field of view into the shorter focal length Naglers,