This 9 mm 1.25" eyepiece has a comfortably wide 80 degree field of view and 20 mm of eye relief.  A foldable rubber eyecup adds to your viewing comfort.

The optical design sports 8 elements in 6 groups and are fully multi-coated for sharp, high contrast images.  The eyepiece has a clear aperture of 32.1 mm.

The body of the E9W-CU is made of an aluminum alloy that has been over-coated with rubber armor for an easy grip and durability.