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NiSi 138mm Mounted Linear Polarizer Filter

BH #NIR138POLA • MFR #NIR-138-POLA
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NiSi 138mm Mounted Linear Polarizer Filter
Key Features
  • Mounted Linear Polarizer Filter
  • For Third-Party or Custom Holders
  • 2.0-2.8x Filter Factor, +1.0-1.5 Stops
  • Helps to Eliminate Reflections and Glare
The NiSi 138mm Mounted Linear Polarizer Filter helps to 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.
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Expected availability: 2-4 Weeks
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does this cause the autofocus or metering system ...

does this cause the autofocus or metering system of the camera to malfunction?
Asked by: Daniel
Yes it will. Autofocus systems and exposure systems of newer cameras require the use of circular polarizers. Linear polarizer are meant for use in film cameras.
Answered by: Rob
Date published: 2020-03-04

Would I have problems with BMPCC 6K Pro False ...

Would I have problems with BMPCC 6K Pro False Color metering when using this filter?
Asked by: Jaime J
Yes. All meters are frequently inaccurate with colored filters because the light sensitivity of the meter is different from the light sensitivity of the sensor. Using a light meter helps with the. just be mindful that the following units offer a light loss filter factor of 2x (1-Stop) to 2.8x (1.5-Stop)
Answered by: hectorm
Date published: 2022-05-22

Which NISI CPL Polarizer will work on the NiSi ...

Which NISI CPL Polarizer will work on the NiSi NIP-FH150-N1424?
Asked by: Ashlinn
The Nisi holder takes 150mm wide filters, click the link below to view; https://bhpho.to/2YwdzfD
Answered by: Rob
Date published: 2020-08-24
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