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Форум Копия-Москва • Светосила объектива

Светосила объектива

В данном разделе можно обсудить вопросы связанные с покупкой и эксплуатацией всего спектра фото-видео техники Canon.

Модераторы: Артём Кибок, Букаловский Николай

Светосила объектива

Сообщение Кортез » 17 апр 2008 8:32

Здравствуйте !

Изменится ли светосила объектива EF при использовании с матрицей формата APS-C ?

Спасибо.
Кортез
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Re: Светосила объектива

Сообщение Алексей Никифоров » 14 ноя 2009 15:16

Нет не изменится, уменьшится лишь угол изображения. В этой связи выпускают "марки" с кроп фактором 1.3. Таким образом используя кроп фактор не прибегая к использованию конвертора для увеличения фокусного расстояния сохраняется светосила для съёмок спорта животных и т.д.
Алексей Никифоров
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Откуда: Краснодар


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