The 20mm high power Omni eyepiece is a 4-element premium symmetrical Plössl optical design.
Features include...
- Blackened lens edges to minimize internal reflection and maximize contrast.
- Multi-layer coating group on each lens surface to maximize light transmission and contrast.
- Each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel.
- Threaded barrels accept 1-1/4" thread-in filters.