Breakthrough Photography 82mm X4 CPL Color-Neutral Circular Polarizer Filter

With the 82mm X4 Circular Polarizer Filter, experience the pinnacle of advanced photography technology. This high-quality, durable filter, designed by Breakthrough Photography, is crafted with an innovative American-made CPL film and a robust brass traction frame, offering unparalleled design and durability.The X4 CPL stands out as the world's most color-neutral CPL, a testament to Breakthrough Photography's commitment to innovation and quality. Unlike other filters that use off-the-shelf CPL film designed for LCD panels, the X4 CPL utilizes a unique, internally developed film manufactured in California. This ensures a gradual transmission decrease from 600nm onward, resulting in warm, lively images without the typical yellow color cast.This effective and versatile filter is also equipped with a transmission curve spectrometer, an optical instrument that measures wavelength or intensity.