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ZWO 850nm IR pass filter - 1.25" (for ASI290, ASI185 & ASI224)


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ZWO 850nm IR pass filter - 1.25" (for ASI290, ASI185 & ASI224)
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The ZWO 850nm IR pass filter - 1.25" (for ASI185 & ASI224) is a 1.25" threaded filter designed to be used with cameras very sensitive to the Infra Red and Near Infra Red part of the spectrum. This allows cameras such as ZWO's ASI 290MC, ASI185 and ASI224 colour systems to be used as monochrome systems, without debeyering and compromising the resolution of their imaging chips (as would normally happen when using colour cameras with a Beyer matrix). At above 850nm, the red,green and blue parts of the Beyer matrix of the aforementioned cameras all function with similar quantum efficiency - making this filter particularly useful in combatting atmospheric turbulence and thermal issues when attempting to image the Moon and brighter planets.

Please note, this filter is not intended for visual use, as our eyes are not sensitive to this part of the spectrum.

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