acuity of 0.1 is sufficient for a person to be able to orientate themselves outdoors. However, a visual acuity of 0.8 is required for reading travel timetables. Other minimum values include: 0.4 for watching [...] watching television, 0.5 for reading the newspaper and 0.7 for reading a telephone directory. Is the ability of the eye to read solely dependent on visual acuity? No. In order to be able to read we require [...] require a functioning retinal surface of around 2.5 degrees to the left and right of the fixation point, i.e. a visual angle of around 5 degrees in total. A reading angle is necessary as our eyes do not read
(Battery)/Battery run time3.6 hCharging time3 hPower supply charging deviceIn: 100-240VAC 50/60Hz 0.6A max, Out: 9VDC 2.5AOperating temperature10 – 40 °CCharging portRund-HohlsteckerPort for data transmission to [...] video tag.Product BenefitsHD camera for high contrast, detailed photosLarge magnification range from 2x to 22x (connected to HD TV, e.g. 40“, magnification 12x to 125x)Generous depth of field for variable [...] nomicintegrated stand installation base (optional) to wear hung over Basic properties Magnification2 – 22 xField of view/Visual field/Field of vision (horizontal)67 mmDisplay TechnologyTFT-LCD, reflex
(Battery)/Battery run time3.6 hCharging time3 hPower supply charging deviceIn: 100-240VAC 50/60Hz 0.6A max, Out: 9VDC 2.5AOperating temperature10 – 40 °CCharging portRund-HohlsteckerPort for data transmission to [...] video tag.Product BenefitsHD camera for high contrast, detailed photosLarge magnification range from 2x to 22x (connected to HD TV, e.g. 40“, magnification 12x to 125x)Generous depth of field for variable [...] nomicintegrated stand installation base (optional) to wear hung over Basic properties Magnification2 – 22 xField of view/Visual field/Field of vision (horizontal)67 mmDisplay TechnologyTFT-LCD, reflex
