The Celestron Oceana 7x 50 binocular is a waterproof binocular designed for marine & land based observations.
This feature-packed
...The Celestron Omni 1.25" 2x Barlow Lens is the astronomy accessory that keeps on giving!. Insert it between your eyepiece & your
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The Celestron Omni 15mm Eyepiece is a 4 -element premium symmetrical Plossl optical design, which determines your telescopes magnification & can give you a wider field of view. The features of this eyepiece include lens edges to minimise internal reflection & maximise contrast, & fold-down rubber eye cups for comfort of use. Rubberised grips come as standard as well.
The eyepiece has multi-layer coating group on each lens surface to maximise light transmission & contrast, & each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufacturers that use reflective surfaces.
Specifications
Focal Distance: 15
Diameter: 3.18 cm (1.25")
Usage: Erecting Eye Piece