Kern OBS Educational Microscopes OBS 104, Binocular tube, 10x Eye piece, Objectives 4x/10x/40x, Fixed StageThe school microscope for the first steps in microscopy and for use in biology lessons Technical Data Optical system Finite Tube type Monocular Ocular magnifications 10 x Ocular visual field 18 mm Standard objectives 4, 10, 40 Lens quality achromatic Nosepiece screw in locations 3 Illuminance Transmitted light Illumination intensity transmitted light 0,5 W Illumination type transmitted light LED Condensor type Simple condenser Kondensor Apertur 0,65