- Excellent product as expected from Lee
- Reviewer left no comment
Published on: 17 April 2021
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The 150 x 150mm SW150 Circular Polarizer Filter from LEE Filters is compatible with a LEE Filters SW150-series filter holder and helps to reduce reflections as well as 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.
A circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.
This filter is non-coated and is constructed from optical glass for clarity as well as color fidelity. When using the 150 x 150mm SW150 Circular Polarizer Filter, the desired degree of polarization is achieved by turning the filter holder it is placed in.
|Ease of use|
|Value for money|
|Scores 9.7 out of 10 based on 3 reviews|
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