orthochromatic

adjective

Of, relating to, or accurately reproducing the colors of the subject.

adjective

Sensitive to all colors except red.

In photography, correct in the relations or in the rendering of colors — that is, free from the usual photographic fault of exaggerating the deepness of greens, yellows, and reds and the brightness of blues and violets.

Staining in the exact shade of color of the dye used.

noun

An orthochromatic plate; a photographic plate the sensitiveness of which is so distributed throughout the spectrum as to give in the image a normal gradation of light and shade.

adjective

Being uniformly sensitive across the entire visible range, and thus reproducing colours faithfully

adjective

Sensitive to all colours except red