Magification:10-30x

Objective diametre:50mm

Eyepiece diameter 18MM

Eye Relief: 14-12mm

Exit Pupil:5-1.7mm

Field of  degree:  4.5-2.1°

Coating type: fully-multi coated

Focusing system:Ind.

Near Focus:2.8m

Waterproof:no,water-resist           

bk7 prism                         

weight：360g

Size:200X75X65mm