4X 10X 20X 40X 60X 100X 195 Achromatic Microscope Objective

4X 10X 20X 40X 60X 100X 195 Achromatic Microscope Objective Lens Laboratory Biological Microscope Parts Function: 195 Achromatic Microscope Objective Lens Laboratory Biological Microscope Parts Features: Standard cover glass thickness 0.17mm For biological microscope Specification: Type: Microscope Achromatic Objective Lens Magnification: 4X/10X/20X(S)/40X(S)/60X(S)/100X(S + oil) Mount Size: 20.2mm Standard RMS thread Material: precision copper core Tube length: 160mm 4X: numerical aperture () 0.1; working distance 18mm 10X: numerical aperture () 0.25; working distance 7mm 20x (S): numerical aperture () 0.4; working distance 0.55mm 40X(S): numerical aperture () 0.65; working distance 0.53mm 60X (S): numerical aperture () 0.85; working distance 0.18mm 100X (S + oil): numerical aperture () 1.25; working distance 0.13mm Packing list: Objective lens*1