The trinocular version of this popular professional scope offers a third vertical eyetube suitable for a Digital Microscope Eyepiece (MA88, available separately) or Digital Microscope Video Eyepiece (MA87, also available separately). Please note that the third eyepiece is not included and should be ordered separately if desired. This professional microscope incorporates all the best features of a quality laboratory instrument. The objectives face backwards for more space and the base has a comfortable plastic plating over the metal for less heat conduction. The field diaphragm adjustment built into the illuminator offers Kohler illumination for more lighting control options. Features: 45 degree inclined binocular Seidentopf head, rotatable 360 degrees; Interpupillary distance adjustment 55-75mm; Pair of 10X widefield eyepieces plus a third eyetube; 4 DIN Achromatic objectives: 4X (N.A, 0.10), 10X (N.A. 0.25), 40X (N.A. 0.65) 100X (oil immersion, N.A. 1.25); Magnifications: 40X to 1000X; Focusing stop to prevent objectives and slides from damage; 140mm x 135mm graduated mechanical stage (range of travel 45 x 80mm) with coaxial drive and comfortable low knob position; Spring loaded slide holder; Abbe condenser NA 1.25 with rack and pinion adjustment; Iris diaphragm with blue filter; Field diaphragm; Coaxial coarse and fine focusing tension controls; Variable intensity halogen illuminator, 6V 20W; Replacement bulb and fuse, Immersion oil. CE certified.