Hoya Fog Diffuser Filter Set A+B for Dreamlike Effects Choose Filter Size:77mm - $64.90 Comparison of 81 Series Conversions:

Comparison of 81 Series Conversions:

green foliage is rendered in much lighter gray tones

The Hoya 25A red filter is especially effective for increasing contrast in black & white photography

The effect can be dramatic or subtle depending on how strong the light source is and how much atmospheric haze is in the air

68 O58 580±5 <25 >85 0

Hoya Fog Diffuser Filter Set A+B for Dreamlike Effects Choose Filter Size:77mm - $64.90 Comparison of 81 Series Conversions:Description The HOYA FOG filters have a frosted surface that lightly veils the entire picture in a pleasing dreamlike fog effect. There are two Hoya FOG filters, a FOG A and the stronger FOG B. Both can be used together to produce an effect similar to dense fog. The effect can be varied by changing the aperture of the lens, but stopping down too far will reduce the effect. These two filters are also available as a set. Specifications Filter Factor: N