ITEM NO.2008-50 MAGNIFICATION 50X FIELD OF VIEW 2.00mmΦ MIN.SCALE DIVISION NO.13 0.02mm NO.15 0.001" MEASURING RANGE 1.6mm WORKING DISTANCE 11.7mm NUMERICAL APERTURE 0.18 FOCAL DISTANCE 14.9mm SIZE 41.5Φ X 122mm NEW WEIGHT 83gm.