Hoya 77mm RA54 Red Enhancer, Color Intensifier Filter

Hoya 77mm Intensifier
Also known as a “didymium” filter, this is used to enhance red, orange and brown subjects to give more color saturation and contrast, while having very little effect on other colors. It can be used in many situations such as architecture where certain building features need emphasizing, or for landscapes to enhance foliage and rocky features.