Total Magnification:40x-1500xOptical System : IOS Infinity Optical System (equivalent to Infinity) Viewing Head :Trinocular observation head (main head) and binocular (discussion heads), inclined 30° and rotatable 360°. Diopter adjustment on left eyepiece. Interpupillary adjustment 55-75 mm. Multi-viewing device (10 simultaneous observers). Three Color Discussion LED pointer (arrow) under the main head. 3-position light path selector: 100/0 (all light to eyepiece), 50/50 (Eye piece & Camera Both), and 0/100 (all light to camera)Eye piece:WF10X/22 mm field of view. Diopter adjustment on eyepiece tube (+-5 diopters) 55-75 mm with dioptric compensationNosepiece:Sextuple revolving nosepiece, rotation on ball bearings Slot available for DIC prismObjective : Infinity Corrected Optical System Plan Achromatic Objective IOS W-PLAN OBJECTIVE 4X N.A. 0.1 W.D. 11.9 IOS W-PLAN OBJECTIVE 10X N.A. 0.25 W.D 12.1 IOS W-PLAN OBJECTIVE 40X N.A. 0.65 W.D 0.36 IOS W-PLAN OBJECTIVE 100X N.A. 1.25 W.D 0.18 (oil) All Condenser :Universal Centrable Abbe condenser (swing-out type) with double lens. N.A. 1.20 Fitted with iris diaphragm. Height adjustment by a rack and pinion mechanism.Focusing : Rack and pinion mechanism with coaxial coarse and fine focusing system, with focusing stop mechanism. Fine adjustment graduation 0.002 mm. Vertical movement range: 20 mm. Tension control on right side; upper stage drive stops on left side. Stage: Belt Drive Mechanical Stage Dimensions 220 mm X 165 mm, Movement X: 76 mm Y: 52 mm. Accommodate 2 Slides, Low ergonomic translation knobs, with friction adjustment. Illumination: Light source type X-LED8 with white LED; light intensity control using a knob on left side of the frame. LED power: 8W (comparable to a 100W halogen bulb). Color temperature: 6300K LED average lifetime approx.: 50.000h. External power supply: Input 100-240Vac 50-60Hz / Output 6Vdc2.5A, Max power required: 13W Pointer:Green LED Pointer , Brightness Adjustable Dual Color Pointer , Brightness Adjustable (OPTIONAL)Optional: Inverse Sextuple Nosepiece Phase Contrast Kit Dark Field Condenser NA 0.9 Dry Dark Field Condenser NA 1.25-1.36 Oil Imaging system Image analysis software