This series offers 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 and 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 inch filters.
Brand Name: Celestron
Objective Lens Diameter: 4-40mm
Eyepiece diameter: 4mm
Field of View: F9
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Super without any problems
Fast shipping and good quality, 100% recommended.
Only 3 week delivery time to CH. Good quality at first observation, everything as described. The 6 mm eyepiece has a 5 mm eye relief, so you have to get pretty close with your eye, which was less comfortable than I thought it would be but it does its job.
Celestron | Omni 4-40mm Eyepiece + Omni 2X Barlow Lens