lightnessyes (multistage)Lighting image tray/supportseveral LEDs (glare-free) brightness adjustable (per LED) lighting can be switched off (per LED)Camera - typeSF/DOF fixed focusCamera - positioningnatural [...] Electronic vision aids visolux DIGITAL XL FHD Art. Nr. 16551 Your browser does not support the video tag.The ultimate in reading comfort. Product BenefitsBest imaging quality and operabilityPleasant [...] (optional) to wear hung over Basic properties Magnification2 – 22 xField of view/Visual field/Field of vision (horizontal)125 mmDisplay TechnologyTFT-LCD, reflexionsfreiScreen size/diagonal in cm29.5 cmScreen