4x4" Hot Mirror Glass Filter

Price: USD $179.00

Item Number: FTG4X4HM

Quantity:

Key Features:

Reduces the amount of infrared light which makes it to the sensor, thereby negating aberrations and colour shifting
30 layer coating technology ensures high IR wavelength reduction accuracy
Ideal for use outdoors when also using an ND filter

Specifications:

Filter Type: Hot Mirror (reflects away infrared light)
Infrared Light Transmission: below 5% transmission between ~ 730nm and 1300nm wavelengths
Focal Length Range: up to approximately 70mm for full frame 35mm (not recommended for telephoto)
Size: 4x4" (101.6 x 101.6mm)
Thickness: 4mm
Material: Glass

Effect Description:

The Hot Mirror filter reduces the amount of infrared light entering the lens (via reflection) while having no affect on the wavelengths of light in the visible spectrum. Digital sensors are especially sensitive to IR light, which can cause aberrations and colour shifting in the image. The hot mirror filter is especially useful when using a neutral density filter because the ND filter will increase the ratio of IR light to visible light. Cavision's 30 layer coating technology ensures high IR wavelength reduction accuracy.

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