72MM CIRCULAR POLARIZER FILTER

Tiffen 72 mm is a polarizer that provides heightened color and contrast. The reflected light is most often appears as a white saturated, deteriorating the color image. The polarizer modifies the effect of depth by pulling dramatically blue skies. At the same time removes the gloss of non-metallic surfaces such as windows and water. The basic feature is the adjustment of saturation, especially in an outdoor environment. Circular polarizer or if circular has the same effect as a linear polarizer and can be used with cameras metering system using an auxiliary light, usually used in SLR chambers with autofocus. For special effects, use a polarizer with additional filters. Combining the polarizer with Red 25 leads to incredible black and white photographs of the landscape.
Tip:
How best to polarize the sky using a circular polarizer: Show your index finger to the sun. Thumb expand at a right angle and rotate around the axis of the index finger. Thumb marks the band's deepest blue horizon.