hd 8x21 lll night vision telescope binoculars mini portable pocket telescope hunting outdoor travel hiking camping zoom telescope

product parameters: type: 8 * 21 magnification factor: 8 times field of view: 180/1000m objective film coating: fmc broad band multilayer green film eyepiece coating: fmc broad band multilayer blue film lens diameter: 21mm exit pupil diameter: 11mm prism system: paul prism material: bak4 main material: plastic steel focus mode: center focus, right eye focus visibility: 7 degrees size: 90 * 100 * 35 mm gross weight/net weight: 186/151g