Magification:12x

Objective diametre:50mm

Eyepiece diameter 18MM

Eye Relief: 12.8mm

Exit Pupil:3.00mm

Field of  degree: 4.9°

Coating type: fully-multi coated

Focusing system:Ind.

Near Focus:4m

Waterproof:no           

bk7 prism                         

weight：350g （including mobile phone holder）

Size:180x67xmm