The Kodak 4 x 4" #3 Light Yellow Wratten Gel Filter for Black & White Film is commonly used to raise contrast slightly with black and white films. Especially useful for clear contrast between blue sky with clouds and foreground. It is also suitable for portraits, landscapes and nature scenes.
Most Kodak gelatin filters are available in 3 x 3" (75 x 75mm), 4 x 4" (100 x 100mm), 6 x 6" (150 x 150mm), and 14 x 18" (350 x 450mm) and 4 x 12" (102 x 305mm).
Used to alter the color wavelength of light, and make changes in contrast in black and white photography
Raises contrast slightly
UPC: 041778539835