Cokin XP709 Cyan Color Correction Filter (CC50C) X-Pro Series

x-Pro Series has been specially developed for professionals using medium or large format cameras and the 'extreme' lenses used by broadcasters, videographers and photographers. It is available in diameters ranging from 62mm to 112 mm , and will fit lenses with diameters up to 118mm with the Universal Adapter Ring.
Color Compensating Filters - Control color by attenuating principally the red, green, or blue part of the spectrum. They can be used to make slight changes in the color balance of images recorded on color films, or compensate for deficiencies in the spectral quality of a light source. These filters will work perfectly with color temperature meters where even slight variances of color will cause a problem.