Structuresmonocular eye relief mm13mm magnification35 objective lens mm52 typenormal materialplastic prism typebak7 field of view668000m exit pupil diameter mm325 magnification20x up eye relief range mm10mm 15mm exit pupil diameter range mm3 4mm objective diameter50 70mm field of view range0 50ft1000yds optical systemroof waterproof levelipx 4 optical coatingfully multi coated tripod mountno brandpanda brandpanda featureswaterproof