ARRI Alexa PL S35 Fsnd 2.1

ARRI FSND 2.1 Filter for ALEXA Internal Filter Module

The ARRI Alexa PL S35 FSND 2.1 is a precision-engineered internal filter designed for the ALEXA Internal Filter Module (IFM). By positioning the filter behind the lens rather than in front, cinematographers can significantly reduce weight and simplify camera builds while maintaining optical excellence.

Superior Optical Performance

ARRI FSND filters are renowned for their ability to maintain a perfectly neutral color balance across all densities. This 2.1 density filter provides 7 stops of light reduction without introducing color shifts or infrared pollution.

Key Advantages of Internal Filtering

• Reduced Reflections: Eliminates the "narcissism" effect where the sensor reflects off the back of front-mounted filters.
• Streamlined Rigging: Reduces the need for heavy matte boxes and multiple filter trays.
• Enhanced Protection: Keeps the sensor protected during lens changes when the IFM is engaged.

Compatibility

This filter is compatible with the Internal Filter Module of ALEXA XT, ALEXA SXT, and classic ALEXA cameras equipped with an IFM upgrade.