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Key Features
- Corrects Infrared Pollution
- 30-Layer Coating Ensures IR Reduction
- Optical Glass Construction
The Cavision 4 x 4" Hot Mirror Filter incorporates a dielectric mirror within the filter to combat infrared light pollution that becomes noticeable when making long exposures with a digital camera. This situation is also naturally prevalent when photographing near strong sources of infrared, such as fires and at sunset. The hot mirror filter effectively cuts out infrared wavelengths but does not interfere with visible red wavelengths. This filter measures 4 x 4" / 101.6 x 101.6mm and is constructed from 30-layer coated optical glass.
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question
How many stops does the 4x4 Cavision Hot Mirror IR filter cut?
It does not cut any stops of visible light. The hot mirror filter cuts out infrared wavelengths but does not interfere with visible wavelengths.
Date published: 2018-08-28
Will this work with any level of Neutral Density?
Will this work with any level of Neutral Density?
Yes, this will work with any level of neutral density filter.
Date published: 2020-10-02
question
Would this work on a Blackmagic Pocket when using traditional NDs? I get a lot of IR and need to reduce it a lot.
Yes, it should help. The hot mirror filter effectively cuts out infrared wavelengths while not interfering with the visible red wavelength.
Date published: 2018-08-28