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ARRI Rota Pola Frame

BH #ARK20009434 • MFR #K2.0009434
ARRI
ARRI Rota Pola Frame
Key Features
  • Mounted Circular Polarizer Filter
  • For ARRI F4-Compatible Matte Boxes
  • Rotatable, Water White Glass
  • Aluminum-Alloy Filter Tray
The ARRI Rota Pola Frame 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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ARRI Rota Pola Frame Overview

The ARRI Rota Pola Frame 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.

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.

Constructed from Water White glass for increased clarity as well as color fidelity, this filter is mounted within an aluminum-alloy filter tray for use in matte boxes that can accommodate ARRI F4 filter frames. To adjust the intensity of the polarization effect, an external dial on the filter tray allows for the independent rotation of the circular polarizer. Once the desired effect has been achieved, the filter tray's integrated lock can then be used to ensure that the position of the polarizer filter remains unchanged.

Compatible with matte boxes that can accommodate ARRI F4 filter trays.
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.
2.3x filter factor reduces exposure by +1.2 stops.
Constructed from Water White glass for clarity and mounted within an aluminum-alloy filter tray.
Non-coated.
External dial on filter tray allows for the rotation of the polarizer filter to adjust the intensity of the polarization effect.
Filter tray's integrated lock can be used to ensure that the position of the polarizer filter and its effect remains unchanged.

ARRI Rota Pola Frame Specs

Filter TypeCircular Polarizer
Filter Factor2.3x (1.2-Stop)
RotatingYes
CoatingsNone
Filter MaterialGlass
Packaging Info
Package Weight0.73 lb
Box Dimensions (LxWxH)8.85 x 8.25 x 1.75"

ARRI Rota Pola Frame Reviews

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YOUR RECENTLY VIEWED ITEMS

Hi. Does it work with tilta MB-T12? Thank you

Hi. Does it work with tilta MB-T12? Thank you
Asked by: Agustina
Yes this filter should work with the Tilta MB-T12.
Answered by: Zachariah
Date published: 2021-02-15

Is the polarizer glass fixed and non-replaceable?

Is the polarizer glass fixed and non-replaceable?
Asked by: Alex
Correct.
Answered by: Rob
Date published: 2019-09-19

Is the glass inside 138mm or a 4.5" filter?

Is the glass inside 138mm or a 4.5" filter?
Asked by: Tanner
I contacted ARRI concerning your inquiry. They state they do not have the filter on hand to measure, and while their website does not list the glass size measurement, they do believe it is a 4.5" filter. They state if you require the 138mm size, you need to go with a larger matte box and purchase the ARRI Rota Pola Filter Frame 6.6x6.6, B&H # ARK20017086.
Answered by: Manzell
Date published: 2020-09-23

Will this unit fit the the trays on the ARRI ...

Will this unit fit the the trays on the ARRI LMB25?
Asked by: David Barrow
This will fit all ARRI matteboxes with F4 frame compatibility – MMB-1, MMB-2, LMB4X5, LMB-25, MB-19, MB-29
Answered by: Reuben
Date published: 2019-07-08

Is this compatible with the older Arri MB20?

Is this compatible with the older Arri MB20?
Asked by: Ashley
No. It is not compatible with the Arri MB20.
Answered by: jabarih
Date published: 2021-05-11

Will this filter fit in the MovCam MM4 mattebox? ...

Will this filter fit in the MovCam MM4 mattebox? I know the Tiffen fits, but this one Im not sure
Asked by: Francisco
After purchasing both the MM4 mattebox by Movcam and the ARRI RotaPola, they fit. So the answer is yes, they will work together.
Answered by: Francisco
Date published: 2018-12-31
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