Black & White Filter Kit, made up of the following filters:
8y: This yellow black & white contrast filter increases constrast and is particularly useful for midday sun and deep shadow. It accentuates clouds, reduces haze and will reproduce distance better
11yg: This yellow-green black & white contrast filter retains tonal values but reduces haze and brightens green.
21o: An orange black & white contrast filter with over-correction of skies. This filter absorbs a small amount of green and will make clouds brighter against the sky.
25r: A red black & white contrast filter which will accentuate red picture parts set off against green or blue.