Affordable 7.5mm 12.5mm 20mm Set Sirius Plossl Eyepieces
- These 20mm, 12.5mm and 7.5mm Orion Sirius Plossl 1.25″ eyepieces are ideal for all types of telescopes
- Each included eyepiece offers a 52 degrees apparent field of view for clear, sharp images of impressively high contrast
- Fully coated with magnesium fluoride on every air-to-glass surface for bright views
- Lens edges are blackened to reduce scattering of stray light and maximize contrast
- Threaded for sue with 1.25″ eyepiece filters
If you already have the Starter Set, or the 25mm and 10mm eyepieces included with many telescopes, this set provides three complementary focal lengths for medium and high magnifications: 20mm, 12.5mm, and 7.5mm.