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This 43mm Dark Red MRC 091M Filter from B+W is used to increase contrast and tonal separation in black and white photography. It enhances clouds while making skies and foliage appear darker, creating dramatic land and skyscapes. Distant objects will be rendered more clearly because the filter cuts through haze and fog. It has a filter factor of 8, requiring exposures to be increased by 3 stops.
Its Schott Glass construction uses Multi-Resistant Coating (MRC) technology to reduce reflections and ghosting; protect from scratches; and repel dirt and water. The F-Pro Mount ring has front threads to allow another filter to be threaded on top. B+W has also made the F-Pro Mount thinner so it will not cause vignetting on lenses as wide as 24mm. The ring is made from brass, which is a softer metal that prevents the ring from binding on the front of the lens.
Increases contrast and tonal separation
Darkens skies and foliage
Filter factor of 8, which increases exposure by 3 stops
Multi-Resistant Coating (MRC) reduces reflections and ghosting; protects from scratches; and repels dirt and water.
Schott glass provides better transmission of light
Brass filter ring helps to prevent jamming and provides additional strength
In the Box
B+W 43mm Dark Red MRC 091M Filter
Limited 10-Year Warranty
Table of Contents
8 (+3 stops)
More dramatic visual effect than a 090 (25) Light Red filter