This drop-in K-series ND and CPL from H&Y Filters is a filter that combines a solid neutral density effect with a circular polarizer effect. Made specifically to fit between a separately available H&Y Filters 100mm K-Series Filter Holder and one of the filter holder's adapter rings. When in use, the filter's 8x or 64x filter factor provides a 3-stop or 6 stop exposure reduction respectively. This creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required.
Simultaneously, this filter can help reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges and filters this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.
Drop-In K-Series ND and CPL are constructed from Schott B270 glass for increased optical clarity and color fidelity. They are mounted within a geared aluminum-alloy filter ring assembly with an external dial, which allows for the independent rotation of the filter in order to adjust the intensity of its polarization effect. Each side of this filter includes eight layers of anti-reflection coating to prevent internal ghosting and reflections as well as an anti-smear nano coating for an improved beading effect when in contact with water or oil for greater cleaning efficiency.
- Drop-In ND and Circular Polarizer Filter
- Fits 100mm K-Series Filter Holder
- Comes in 8x Filter Factor, 3-Stop (0.9) or 64x Filter Factor, 6-Stop (1.8) strength
- Darkens Entire Image
- Reduce Shutter Speeds, Widen Apertures
- Greater Control Over Exposure Settings
- Helps to Eliminate Reflections and Glare
- Reduces Haze in Landscapes
- Greater Color and Tonal Saturation
- Schott B270 Glass Construction