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The B+W 39mm Light Red SC 090 Filter can be used to increase image contrast when photographing using a film camera system with black-and-white film installed.
This filter's effect corresponds to that of a Wratten 25 filter. Wavelengths of visible light that are apparent as green and blue colors to the human eye are suppressed, while visible light associated with yellow, orange, and red colors are able to more easily pass though the B+W 39mm Light Red SC 090 Filter and into the lens it is mounted in front of. When photographing with this filter along with black-and-white film, green to blue-colored subjects within a scene are reproduced in very dark shades of grey than if a filter was not used. Simultaneously, yellow to red subjects are rendered in very light shades of grey.
When applied to black-and-white photography, the increased contrast provided by the B+W 39mm Light Red SC 090 Filter can result in very dark skies with extremely defined clouds. Shades of green among foliage can become strongly differentiated from neighboring shades of yellow, orange, or red, while light skin tones can be rendered as white or near-white. Additionally, this filter can also minimize the presence of haze caused by the bluish cast of daylight.
To prevent internal ghosting and reflections, each glass surface includes one layer of anti-reflection coating. B+W filters are constructed from Schott glass for increased optical clarity. This filter features an F-Pro brass filter ring for durability as well as jamming prevention.
Increases image contrast when photographing using a film camera system with black-and-white film installed
Produces very dark shades of grey from green to blue-colored subjects and very light shades of grey from yellow, orange, or red subjects than without a filter
When applied to black-and-white photography, can result in very dark skies with extremely defined clouds, strongly differentiated green foliage, light skin tones rendered as white or near-white, and minimizes the presence of haze caused by the bluish cast of daylight
0.7 density and 5x filter factor create up to a two and one-third stop reduction of light
Single coated to prevent internal ghosting and reflections
Constructed from Schott glass for optical clarity
F-Pro brass filter ring helps to prevent jamming and provides additional strength
Plastic case included for storage and transport
In the Box
B+W 39mm Light Red SC 090 Filter
Limited 10-Year Warranty
Table of Contents
5 (2.3 stop)
Equivalent to Wratten 25
Increases contrast when shooting with black-and-white film