... , 48VDCMicroscopeType:Galilean TypeMagnification changeFive Position DrumTotal magnification ratio6x, 10x, 16x, 25x, 40x(professional)Eyepieces12.5xAngle between eyepieces13°Pupillary adjustment52mm-78mmDiopter adjustment ... ±6DField of view40x(Φ 5.5mm),25x(Φ 8.5mm),16x(Φ 13.5mm)10x(Φ 22mm),6x(Φ 34.7mm ...