This 72mm Ultra Slim S-Pro Nano MC Circular Polariser Filter from Sirui helps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarised due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarising filter arranges and filters this directionally polarised 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.
Sirui Ultra Slim S-Pro Nano MC Circular Polariser Filters are constructed from Schott B270 glass for increased optical clarity as well as colour fidelity and provide over 99% transmission of visible light. This 72mm Ultra Slim S-Pro Nano MC Circular Polariser Filter features a durable, aluminium alloy filter ring that minimises the potential for vignetting while remaining lightweight.
Each glass surface of this 72mm Ultra Slim S-Pro Nano MC Circular Polariser Filter is multi-coated to help eliminate internal ghosting and reflections. The filter is also coated for resistance to oil, static, dirt, and scratches, offering greater protection to the filter and helping it to stay clean for longer than with uncoated filters. The coatings are hydrophobic, resulting in an improved beading effect when in contact with water for greater cleaning efficiency.
Key Features:
- Helps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface
- Polarising filters arrange and filter directionally polarised 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 colours
- Strongest effect when used at a 90° angle from the sun
- Circular polarisers are ideal for use with digital cameras and autofocus lenses where a linear polariser will often disrupt auto exposure and focus features
- Multi-coated to prevent internal ghosting and reflections.
- Coated for oil, static, dirt, as well as scratch resistance and provides an improved beading effect with water for more efficient cleaning
- Constructed from Schott B270 glass for increased optical clarity as well as colour fidelity
- Slim aluminium alloy filter ring assembly helps to prevent vignetting while remaining lightweight
- Filter ring can be rotated to adjust the intensity of the polarisation effect
