4 x 5.65" Ultra Linear Polarizer Filter Tiffen It has a filter factor

It has a filter factor of 4

reduces ISO by 1/8) ND1

10 Year Warranty

The system can support a camera up to 10 lb and offers smooth fluid drag with continuous counterbalance

80 lb Load Capacity

4 x 5.65" Ultra Linear Polarizer Filter Tiffen It has a filter factorThe Tiffen 4 x 5. 65" Ultra Pol Linear Polarizer Filter helps to greatly reduce reflections and glare by filtering out light that has become polarized due to reflection from a non metallic surface. This results in a noticeable increase in the saturation of skies and foliage, as well as clearer imagery when photographing in hazy conditions. A linear polarizer differs from a circular polarizer in that it does not supports use of a camera's autofocus or