850nm IR Pass Filter (1.25″)
41,00 €
The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of more than 850nm to pass through. At these longer wavelengths, the sensitivity of the unaided
Description
The Antlia IR Pass 850nm filter is an absorptive filter that allows infrared light with wavelengths of more than 850nm to pass through. At these longer wavelengths, the sensitivity of the unaided eye is reduced, so it is not suitable for visual observations.
The filter is highly recommended for any planetary photography. At long-wavelength spectral range the atmospheric air turbulence (seeing) has much lower impact on the sharpness. The closer to the infrared band, planetary images are less disturbed by wavefront distortions in the atmosphere (seeing), resulting in the sharpest and highest contrast image possible.
It also possible to image the other planets during daylight due to the dark background sky created by the 850nm IR Pass Filter.
Explore these guides from our Astro Wiki to learn more about this type of equipment:
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