Omegon ADC Atmospheric Dispersion Corrector
ADC (Atmospheric Dispersion Corrector) - sharpens your planetary photos when near the horizon Who hasn't experienced this problem - Saturn is just above the horizon, appearing as a blurred disc in the telescope? A mere blob in the sky. Taking planetary photos is not worthwhile in this situation - where the planet's light is refracted by the dense and thick layers of atmosphere leading to colour fringing. One would normally have to wait hours until the planet rose higher before it could be usefully observed. But sometimes that is not possible anyway due the orientation of the planet's orbit. The solution - an Omegon ADC! This small component provides a sharp planetary image showing a lot of detail, even when it is just above the horizon. The advantages in a nutshell - corrects atmospheric dispersion - less colour fringing, sharper planetary photos and more detail. - 2.5° adjustment range - two mutually adjustable prisms - ultra-low profile - also suitable for visual observing and bino-viewers - ring scale for adjusting dispersion correction - 1.25" adapter with T-ring and compression ring - for cameras and eyepieces - telescope-side 1.25" tube with filter thread How the dispersion of the Earth's atmosphere makes objects beautiful When we look at a bright star on the horizon, we often see it 'twinkling' and flickering in the most beautiful colours - nice for romantics, but bad for astronomers! This is because the light of the star is being heavily refracted by the thick layers of the earth's a
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Omegon
{"Item Weight": "9.2 ounces", "Date First Available": "July 21, 2017", "Manufacturer": "Omegon"}