Compound Trinocular Microscope 40X to 2500X Magnification Laboratory LED Microscope Item Type: Compound Trinocular Microscope Material: Aluminum Alloy Model: KP AM200T Optical Magnification: 40X-2500X Viewing Tube: Trinocular Hinge, Tilt 30 degrees, Rotate 360 Degrees, Pupil Distance Adjustment 48-75mm Eyepiece: Wide Angle Eyepiece WF10X/DIN18mm, WF25X/8mm Objective Lens: Flat Field Achromatic Objective Lens 4X, 10X, 40X, 100X (Oil Lens) Converter: 4 Hole Converter Stage: Double Layer Mechanical Traveling Stage, Area: Approx. 125mm × 115mm/4.93 x 4.53in, Traveling Range: Approx. 76mm × 52mm/2.99 x 2.05in Focusing Mechanism: Low Hand Position Coarse And Micro Coaxial Focusing Mechanism, Coarse Adjustment Stroke 20mm, Micro Adjustment Accuracy 0.002mm Spotting Lens: Abbey Spotting Lens, NA=1.25, Aperture Variable Light Source: LED Cold Light Source 1W Trinocular Interface: 1 x Trinocular Interface ( Can be connected to 25mm camera and 23.2 electronic eyepieces ) Battery Type: AA Battery x 3 ( Shipped Without Batteries )