Shooting at excursion and on travel. Photo-electric eksponometry

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In some cases it is expedient to measure not reflected, and light falling on object for what in eksponometrah are provided special dairy rasseivateli. Many photo-electric eksponometry have strong enough magnet which can influence compass readings. Therefore it is not out of place to define in advance by practical consideration is minimum admissible distance between them. спутниковая навигация

From time to time it is necessary to look and on the counter of shots - in the device always there should be a film stock. The untimely recharge can lead to that the film can come to an end and the most improper moment. Besides, to charge the device very difficultly at a rain or during overcoming of obstacles.

At bright light a recharge to make categorically it is not recommended, for it can lead to irreparable damage; to time of two rollers of a film. Therefore quite often it is necessary to recharge the device in conditions convenient for it, not reckoning with loss of a quantity of not removed shots. Just in case it is necessary to write down, how many shots remain on each of these nedosnjatyh films.

Then, if in the end of a campaign will come sharp ' hunger ' on photographic materials, it is possible to use and these remained reserves: after the film will be accurately rewound, it again charge in the device and pass naturally, at objective densely closed by a cover) all shots removed earlier, plus 1-2 more for the insurance.