Polymax 3.5 x 3.5 Filter Set

Set of 12 speed-matched polyester filters for controlling Kodak or other selective-contrast papers. Polymax filters provide an expanded range of contrast grades from approx. Grade -1 to Grade 5+. Filters come in 1/2 grade increments, with the neutral filter being rated a 2 1/2. Comes in a padded album case.