The Tiffen 6.6 x 6.6" Linear Polarizer Filter is a handy tool for reducing unwanted reflections and glare caused by polarized light. This filter is particularly effective when dealing with reflections from non-metallic surfaces. Sunlight gets polarized when it reflects off molecules in the air, creating a kind of haze. A polarizing filter is designed to filter out this polarized light that's bouncing off surfaces at specific angles, thus minimizing the glare and improving overall image quality. Additionally, it can enhance the vividness of skies and foliage.

In comparison to a circular polarizer, the linear polarizer doesn't have an extra quarter wave plane. This difference affects how the light is managed and filtered, and it's important to note that using a linear polarizer might impact in-camera auto focus and exposure functions. It's most effective when these features aren't being utilized. The filter isn't coated, allowing about 40% of the light to pass through on average.

Tiffen's filters stand out due to their ColorCore technology, a specialized process where the filter substrate is carefully sandwiched between two layers of optical glass. Afterward, the filter is precision-ground to a remarkable accuracy level of 1/10,000th of an inch. This technique ensures high-quality results that photographers and filmmakers can rely on for exceptional performance.

• Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
• Polarizing filters arrange, and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light.
• Clears up haze in distant landscapes and provides more saturated, vivid colors.
• Strongest effect when used at a 90° angle from the sun.
• Recommended when not using in-camera exposure metering or autofocus.
• Non-coated.
• Approximately 40% average light transmission.
• 2.5x filter factor reduces exposure by 1.3 stops.
• Constructed using ColorCore technology.
• Filter Pouch for storage and transport.