The Optika B-191 Monocular LED Microscope is an advanced instrument capable of up to 1000x magnification with a modern finish and robust stable build. Perfect for use in examination assessed work and advanced level education. The removeable WF10X/18mm eyepiece which is secured by a small screw can be removed to accommodate an eyepiece micrometer or eyepiece camera when necessary. Graduated coaxial coarse and fine focusing mechanism. Illumination is by a 3W X-LED with adjustable intensity.Accessories included:Power supplyDust coverInstruction manualAccessories available separately:Spare Power lead (B8R06947)Eyepiece WiFi Cameras (PP00050387 - USB PP00050388 - Wireless)Eyepiece Micrometer M004 (B8R06422)Stage Micrometer (B8A76119)Alcohol-free Antiseptic Wipes - for cleaning eyepieces between use (B8R08715)Lens Cleaning Tissue (PP00052867)Microscope Maintenance Kit (B8R07243)Technical Specifications:Total magnification: 40x 100x 400x 1000xEyepieces: Wide field WF10x/18mm secured with a screwHead: Monocular 360° rotating with 30° inclined eyepiece tubeNosepiece: Quadruple revolving nosepiece rotation on ball bearingsObjectives: N-PLAN Antifungal objectives4x/0.10 W.D. 15.2mm10x/0.25 W.D. 5.5mm40x/0.65 W.D. 0.45mm100x/1.25 W.D. 0.13mm (oil/water immersion)Stage: Double layer with mechanical sliding stage with specimen holder 125 x 115mm. X-Y movement range 70 x 30mm. Vernier scale on the two axes accuracy 0.1mmFocusing: Coaxial coarse and fine focusing mechanism (graduated 0.002mm) with upper stop. Adjustable tension of coarse focusing knobCondenser: Abbe condenser N.A.1.25 pre-centred by rotationIllumination: 3W X-LED with adjustable intensityLED Details: 3W 6300K colour temperature average life time approx. 50000hObservation Mode: BrightfieldVoltage: External power supply 100/240V 50/60Hz output 7.5 V. Max power required: 7WDimensions: (H)370mm x (W)235mm x (D)290mmWeight: 6.5kgAge Suitability: 11-18 Years