Description : 1. Weight : 213 g 2. Coating : FMC 3. Dimensions : 11.5 x 12.5 x 6.5 cm 4. Features : Low-light night vision, non-infrared, clearer farther and farther, no dizziness after watching for a long time, wide field of vision 5. Lens composition : 6 elements in 4 groups 6. Prism type : PORRO prism 7. Interpupillary distance : 58-70 mm