| B+W Light Yellow Filter 021(2E)
This filter suppresses violet and attenuates blue. On the other hand, green, yellow, orange and red are reproduced in lighter shades. It is ideal for landscape photographs, since white clouds will contrast more against the darker blue sky, and the shades of green on plants are more differentiated. Freckles and skin blemishes in portraits can be attenuated, tans can be rendered lighter. Its filter factor is approximately 1.5.
B+W Medium Yellow Filter 022(8)
With strong blue suppression, which extends into the blue-green, clouds in the sky look very natural, but not yet dramatic. Distant views with light haze become clearer. An ideal filter, especially for landscape and plant photographs. Its filter factor is approximately 2.
B+W Medium Yellow Filter 023(15)
This dark yellow filter gives a greater attenuation into the blue-green range than a light yellow filter. This leads to a further increase in the effect of darkening blue and lightening of yellow, orange and red. This filter is interesting for snow scenes under a blue sky, because the darkened blue shadows in the snow make the shapes of the landscape look more dimensional. Landscapes containing clouds and blue skys are rendered dramatically. Freckles and skin blemishes are diminished strongly, but lips are rendered more pale (to compensate for you may use a dark lipstick!). Its filter factor is approximately 3.
B+W Red-Orange Filter 040(16)
The effect of this filter is quite powerful. It darkens violet and blue very strongly, green strongly, it even darkens yellow-green a bit. Landscape- and architectural photographs have an increased, virtually “graphic” contrast, clouds in the sky already look dramatic. Because skin tones are strongly lightened in relation to the green tones of plants, this is a favored filter for nude photography outdoors, because it raises the contrast between the lighter bodies and darker landscapes. Its filter factor is approximately 4.
B+W Red-Orange Filter 041(22)
The intensified effect of this filter borders on the abstract. It darkens a blue sky with clouds to resemble the mood of an impending thunderstorm. Architectural photographs gain clarity and drama. This filter is also interesting for many black-and-white close-up photographs of flowers, when dark yellow, orange or red blossoms have almost the same brightness as the surrounding greenery: This filter is used to render the flowers in lighter shades of gray. Depending on the subject, its filter factor is 4 to 5.
B+W Yellow-Green Filter 060(11)
This filter has an effect similar to that of the medium yellow filter, but it also darkens red colors. Clouds in the sky gain more contrast, a red roof and red flowers are rendered darker in relation to plant greens (as they would not with a purely yellow filter). The yellow-green filter accentuates the delicate springtime green in nature, it makes portraits more dramatic. Its filter factor is approximately 2.
B+W Green Filter 061(13)
This filter differs from the yellow-green filter primarily because of its increased red attenuation. A red roof or red flowers will become even darker, as will red lips and a dark tan and, unfortunately, so will skin blemishes. This filter is ideal for nature photography. In object photography, it is good for darker reds and lighter greens. Its filter factor is appr. 3.
B+W Light Blue Filter 080
This filter renders blue tones lighter, but yellow, orange and especially red darker. “Aerial perspective” caused by haze and fog is increased, the sky will be rendered lighter. It is favored for tonal separation in object photography (darker reds, lighter blues), and also for the correction of excessively light gray values of orange and red colors under artificial illumination. Its filter factor is approximately 1.5.
B+W Blue Filter 081
This filter produces the same results as the 080 Light Blue Filter, only more intensely. Therefore it has the same application. Its stronger effect make it a mood-creating filter when photographing in fog or when aerial perspective is to be accentuated. Tonal separation in the photography of objects is also increased. Its filter factor is approximately 2
B+W Light Red Filter 090(25)
This is the classic filter for architectural photography. White façades glow brightly, the blue sky is darkened dramatically and clouds become more impressive. It is also excellent for spectacular landscape photographs with greatly improved distant views. Its filter factor is approximately 5.
B+W Red Filter 091(29)
Compared to the lighter 090 red filter, this one even darkens the reds near the yellow tones in the spectrum, as its transparency only begins in the orange-red region. It produces dramatic effects and extreme tonal separation for graphic effects. That accounts for the large filter factor of appr. 8.
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