Filters
ClearNational Geographic
- Shipped from Skroutz Hub: Products available for shipping directly via our warehouse, Skroutz Hub.
- Offers: Products with a significant price drop.
- Dioptric: They use a lens that refracts light and focuses it at the back end.
- Reflecting: They use a mirror to gather the light. Then, with a secondary mirror at a 45-degree angle, they send the light to the eyepiece.
- Catadioptric: They use lenses and mirrors.
