Definition: See filter factor
Definition: number that tells how many times exposure must be increased in order to compensate from loss of light.
Definition: A number that tells how many times exposure must be increased to compensate for loss of light (for example, due to use of a filter).
Definition: number that tells how many times exposure must be increased in order to compensate from loss of light.
Definition: A number that tells how many times exposure must be increased to compensate for loss of light (for example, due to use of a filter).

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