Product Description
The GSO 20mm Super-Plössl Eyepiece is your gateway to expansive and crystal-clear night sky views. Offering a balanced magnification level, it's an ideal tool for scanning wide open star clusters, exploring large galaxies, or simply enjoying detailed sweeps across the cosmos.
Built with four high-quality optical elements and fully multi-coated for enhanced light transmission, this eyepiece delivers sharp, high-contrast images from edge to edge. Its 52-degree field of view feels natural and immersive, while the long 20mm eye relief ensures comfortable use even during longer observation sessions—great for both eyeglass wearers and casual observers alike.
| Specification | Details |
|---|---|
| Eyepiece Series | Super-Plossl |
| Focal Length | 20mm |
| Barrel Size | 1.25" (31.7mm) |
| Apparent Field of View | 52° |
| Eye Relief | 20mm |
| Filter Threads | Standard 1.25" (M28.5 x 0.6) |
| Coatings | Fully Multi-Coated |
| Lens Elements | 4 |
| Blackened Lens Edges | Yes |
| Barrel Type | Smooth sided |
| Optical Design | Plossl |
| Height (Eyeguard Extended) | 70mm |
| Rubber Eye Guard | Yes |
| End Caps | 2 |
| Storage Container | Yes – Free Agena Eyepiece Container |
| Container Size | Agena 42x80mm |
| Weight | 3.5 oz |
