chapter  8
16 Pages

Filters

Square and rectangular filters are made to be used in a matte box, which attaches in most cases to the same rods that support the lenses. Qpical square sizes include 2" x 2," 3" x 3," 4" x 4," and the currently popular 6.6" x 6.6." Rectangular sizes include 3" x 4," 4" x 5.650 (also often referred to as "Panavision" size), and 5" x 6."