Above image shows the outstanding:
77mm Orange Filter
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See other items in the category 55-77mm Filters
Deep color filters such as Red, Yellow, Orange and Green are used to manipulate contrast with Black & White films, though they can also be used effectively with color films for color special effects. With Black & White films colors in the original scene which are unlike the filter color will be rendered darkly. For instance, many people use orange filters in their Black & White photos to get darker blue skies than they would with a yellow filter but less than they would with a red. (read more)
