The 1.1.25 inch PloSSL eyepiece is suitable for observing faint and dim celestial bodies such as nebulae, star clusters, and comets. The field of view is transparent and bright, providing comfortable observation. 3. True FMC full broadband multilayer coating ensures that each glass surface has multiple layers of coating to achieve better image quality. 4. Standard PloSSL eyepiece structure: 2 sets of 4piece optical structures 5. The edge of the lens is matte black to prevent interference from stray light 6. The all metal mirror structure has a delicate texture and fine workmanship. The humanized and environmentally friendly rubber anti slip ring design prevents accidental pressure. Specifications: 1. Brand: SVBONY 2. Model: SV131 3. Eyepiece type: PloSSL 4. Focal length: 32mm 5. Field of view: 46 degrees 6. Exit pupil: 23mm 7. Eye distance: 25mm 8. Field aperture diameter: 30mm 9. Camera set: 2 sets/4PCS 10. Lens coating: FMC 11. One side of the lens coating: extinction ink 12. Material: Metal 13. Thread size: M28.5 * 0.6 14. Anti slip cover: Yes 15. Eye mask type: rubber 16. Net weight: 116.5 g/4.11oz 17. Size: Ø 61X104mm The package includes: SVBONY SV131 1.25 PloSSL 32mm eyepiece