magnifier headLupentopf inkl. LED-Batteriegriff Operating unit (magnifying glasses) Magnification12.5 xDioptre50 dptMaterialsmanual_system varioPLUS.pdf2.2 MBmanual_scale system varioPLUS.pdf461.3

(magnifying glasses) magnifier headLupentopf, lose Operating unit (magnifying glasses) Magnification12.5 xDioptre50 dptMaterialsmanual_system varioPLUS.pdf2.2 MBmanual_scale system varioPLUS.pdf461.3

Miscellaneous Properties (magnifying glasses) NotesDelivery incl. usable measuring scale, graduation 0.5mm and 1/64 inchmagnifier headLupentopf, lose Operating unit (magnifying glasses) Magnification10 xDioptre38

linemagnifier headLupentopf inkl. LED-Batteriegriff Operating unit (magnifying glasses) Magnification5 xDioptre20 dptMaterialsmanual_system varioPLUS.pdf2.2 MBmanual_scale system varioPLUS.pdf461.3

retractable, red reading linemagnifier headLupentopf, lose Operating unit (magnifying glasses) Magnification5 xDioptre20 dptMaterialsmanual_system varioPLUS.pdf2.2 MBmanual_scale system varioPLUS.pdf461.3

reciprocal value of the focal length of a lens measured in metres: a power of +5 dpt therefore has a reciprocal length of 1/5 metres or 20 centimetres. What is long-sightedness? In the case of long-sightedness [...] read we 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 [...] required for reading travel timetables. Other minimum values include: 0.4 for watching television, 0.5 for reading the newspaper and 0.7 for reading a telephone directory. Is the ability of the eye to read

Miscellaneous Properties (magnifying glasses) NotesDelivery incl. usable measuring scale, graduation 0.5mm and 1/64 inchmagnifier headLupentopf inkl. LED-Batteriegriff Operating unit (magnifying glasses)

Properties Magnification distance2.8 xVisual field distance /1000 m220 mViewing angle distance/far12.5 °Magnification Near3.4 xVisual field near26 mmViewing angle near10 °Materialsmanual_keplerian telescopes

Properties Magnification distance2.8 xVisual field distance /1000 m220 mViewing angle distance/far12.5 °Magnification Near3.4 xVisual field near26 mmViewing angle near10 °Materialsmanual_keplerian telescopes

Properties Magnification distance2.8 xVisual field distance /1000 m220 mViewing angle distance/far12.5 °Magnification Near3.4 xVisual field near26 mmViewing angle near10 °Lens diameter9 mmMaterialsmanua