مرشحات تعديل إتزان الألوان .. كتاب التصوير الملون ، الكاتب عبد الفتاح رياض

Color balance adjustment filters

Color Balancing Filters

They are pale colored filters that absorb one or more primary colors and can be obtained in different degrees of intensity. These filters are no longer intended to adjust the color temperature of the rays (1) (as is the case with those previously mentioned on pages 64-71), but are intended to adjust the general balance of colors in the photographic results..

Changing overall Color Balance of Photographic results obtained from color films, for example, they are suitable for the following purposes:

43. (1) 962, p. B: J. Photographic annua-

(1) Assuming that we had a positive, Color Transparency, transparent image, and its color was not satisfactory, because a Color Cast covered it, and then we wanted to see this image or we wanted to photograph it by reproduction while getting rid of this defect, then we can resort to this filters to perform the desired purpose.

(b) To get rid of color smears when printing negative color images or enlarging them to obtain a color positive image free of smears (1). (H) When using enlarging or photographic transmission devices (i.e. operating with an optical system) and it is required that a white, opaque opal glass or a heat-absorbing glass be placed in the path of the rays.

Heat Absorber, which are substances that may change the spectral properties

for interfering rays.

We mention below some of the filters that fall under this category, produced by Kodak, Giffart and Alford factories. Although these factories have given groups of this type of filters different names, they all fall under the name of color balancing filters.