UV protection lens CPL polarizer FLD fluoroscope triple filter set
FLD fluoroscope:
    Designed to eliminate the neon green and "warm white" fluorescent green reflected light, clear the picture of the deep cyan tones. Use should avoid shooting directly to the light source. Fluorescence is a special type of color compensation filter. When shooting daylight-type color photographs under fluorescent lighting, the screen will appear blue and green, but if a fluorescence filter lens (fluoroscope) is added, the above phenomenon can be corrected so that the color of the screen can be restored.
Fluoroscopes provide the right color to eliminate the cast-off caused by harsh green fluorescent bulbs.
Fluorescent mirrors are actually designed to convert fluorescent daylight and provide proper skin tone and natural color under fluorescent lighting conditions. Its color magenta adds warmth to the overall correct color, eliminating the cast-off caused by harsh green fluorescent bulbs.

UV protection mirror:
    UV mirror is also called UV filter, UltraViolet. Usually colorless and transparent, but some because of the addition of anti-reflective film, at some angles to watch the show will be purple or purple. Many people buy UV mirror to protect the delicate lens coating, in fact, this is only one of its subsidiary functions. UV mirror can reduce the UV-induced blue tone. At the same time for the digital camera, you can also rule out the interference of ultraviolet light on the CCD, help to improve the clarity and color effects.

CPL polarizer:
    Reduce the brightness of the sky By rotating the lens to absorb many of the diffuse reflection of polarized light, you can diminish the intensity of sky light, darkening the sky and increasing the contrast between blue and white clouds.
Controlling non-metallic reflective lighting typically produces intense, single-reflections of light as it casts onto smooth objects such as water, glass, painted furniture, and more, which can become high light spots in photographic scenes, while high light spots can make the shot Affected, because with the CPL lens to shoot to improve image quality and improve the clarity of the screen