Achromatic objectives:4X,10X,40X(S),100X(S,OIL) Wide field eyepiece:WF10X Eyepiece head:Sliding binocular head inclined at 45 Stage: Double layer mechanical stage:Size 140x140mm,moving range 75x45mm Focusing:Coaxial coarse and fine adjustment,focusing range 30mm,focusing interval 0.002mm Nosepiece:Quadruple /Quintuple Illumination:6V/20W halogen lamp or 110V/6V20W