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Features

  • Omni eyepieces offer a quality 4-element Plossl optical design at a super affordable price
  • Rubber eyecups provide comfort and increase contrast. Leave them up or fold them down when wearing eyeglasses.
  • Beautiful matte aluminum barrels and blackened lens edges prevent internal reflections
  • 1.25" barrels are threaded to accept filters

Celestron Omni 4 mm Eyepiece

Celestron Omni series eyepieces offer a 50º apparent field of view, perfect for the Moon, planets, and a plethora of deep-sky objects. The premium four-element optical set is finished with multiple layers of high-transmission coatings for clear, sharp images. The edges of the optics are blackened for increased contrast.

The Omni eyepiece body is made of aluminum. A two-step anodizing process results in a beautiful matte finish that resists reflections and glare. Each eyepiece in the Omni Series includes a black rubber eyecup. It can be left up or folded down for better observations while wearing eyeglasses. Models with a longer barrel (15 mm, 32 mm, 40 mm) include a rubberized grip for non-slip handling during observing sessions. The insert barrel is threaded to accept 1.25" filters.

    Specifications

    Focal Length 4mm (0.16")
    Apparent Field of View 50°
    Eye Relief 6mm (0.24")
    Number of Lens Elements 4
    Barrel Size 32mm (1.25")