Neewer 77mm Full Red Color Filter for Camera Lens with 72mm Filter Thread Full color filters provide a complete color transition for a smooth blending effect. Give your landscape and skin texture a more colorful touch. Perfect for changing the mood of a picture. Provides dramatic contrast in outdoor photography when used with black-&-white film / Also works with color and infrared films. This filter is double threaded allowing additional filters to be screwed one over the other. High quality metal and glass construction. Extremely solid and lightweight. NOTE: This filter is compatible with all 77mm lenses. Please verify your camera's lens thread size before ordering. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "" (diameter) symbol. For example: 77 = 77mm lens thread size.