... lamp specification Mircoscope Type Galilean stereoscopic microscope Magnification 5 steps by drum rotationEye piece 12.5×Total Magnification and Diameter of Visual Field ... (mm) 6×(33mm),10×(22.5mm),16×(14mm),25×(8.8mm),40×(5 ... 1mm to 14mmSlit Angle 0 ~ 180°adjustableSlit Inclination :0 degree ,5 degree ,15 degree ,20 degree .Light Spot Diameter(mm) φ ...