The Tiffen 6.6x6.6 81EF Neutral Density Filter 0.9 is a combination 81EF warming filter and Neutral Density. It has about a one stop loss and is used to warm scenes, or for partial color correction when using tungsten based film outdoors and the desired look is to still have a slight blue cast.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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