The X4 Dark Circular Polarizer (CPL) from Breakthrough Photography is engineered to be the sharpest and most color-neutral polarizer...

Breakthrough Photography X4 Dark Circular Polarizer

The X4 Dark Circular Polarizer (CPL) from Breakthrough Photography is engineered to be the sharpest and most color-neutral polarizer on the market. Featuring our internally developed CPL film, state-of-the-art coatings, and a precision-machined brass traction frame. The X4 delivers unparalleled performance and durability.

The X4 CPL features ultra-clear SCHOTT B270® optical crown glass made with the highest purity raw materials and cutting edge MRC16 and nanotec® Nano Coatings. At the core of the X4 is Breakthrough Photography's all-new, internally designed CPL film made in the USA. While most manufacturers use off-the-shelf polarizing films intended for LCD panels, Breakthrough has developed a unique approach specifically for precision optics. The result is an incredibly sharp, color-neutral CPL with the highest light transmission of any available polarizer.

The X4 "Dark" variant is available with a 3-stop or 6-stop neutral density filter incorporated into the design. This allows you to use only one filter instead of needing to "stack" multiple filters to achieve the desired effect. The X4 is also available as a straight CPL with no neutral density effect.

Breakthrough engineers every one of their filters to withstand a lifetime of use in extreme wind, salt water, dust, and any other abrasive elements found in nature. The X4 CPL is precision machined from high-quality brass with their signature traction frame. The rugged design was developed for durability and to make it easy to securely attach and remove the filter - even with gloves in cold conditions.

Breakthrough Photography stands behind every filter they make with their 25-Year Ironclad Guarantee. Their team spent years developing each aspect of the filter to maintain optical performance and reliable function for a lifetime of use. Breakthrough guarantees that their filters will remain free from manufacturer defects for 25 years from the date of purchase.

Buy the Breakthrough Photography X4 Dark Circular Polarizer Filter


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