... )View: 173m/1000m 3)optical glass,rubber,plastic, aluminium alloy High quality lens for smartphone: iphone 4/4s Model Number:TST0350189(A ... Dia:18mmExit Pupil Dia:2.5mmExit Pupil Distance:10.5mmField of View:173m/1000mCoating:blue coatedMaterial:optical glass,rubber,plastic, aluminium ... (monocular) 53x70x32mm(fixation clamp) Weight:65g (monocular) 35g (fixation clamp) High quality lens for smartphone