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The optical instruments include the astral telescopes for the observation of the deep sky or the planets or ground for the fauna, the diurnal binoculars also for the fauna and the birds and night for nocturnal animals.

The meteorological instruments such, as thermometers, barometers, anemometers and rain gauges for the local forecast.

The instruments for leisure activities and trekking, the compasses and the GPS, the is for the orientation on the ground or the preparation of a route from paper or electronic maps.

Instruments combined with watches bracelet and ski mask with incorporated GPS to measure your sports performances and way points on computers.

Magnifying glasses and magnifying glasses binocular microscope serve to observe domains of the young either for reading of the small characters for the persons with low vision. Microscopes serve to observe the ultra structures of cells or unicellular animals.