ZWO Atmospheric Dispersion Corrector (ADC) - 1.25" Dew Heaters which guarantees precise positioning of

which guarantees precise positioning of the filter

even with a longer exposure times

Made of black anodised aluminium and stainless steel

By using a double stack filter

ZWO Atmospheric Dispersion Corrector (ADC) - 1.25" Dew Heaters which guarantees precise positioning ofWhat is an atmospheric dispersion corrector: An ADC corrector is a small unit that corrects the refraction of light in the atmosphere. For example, a large object like Jupiter has a red and blue color fringe and also appears distorted. This effect is caused by the refraction of light in the Earths atmosphere which acts like a prism. This effect becomes more prominent, depending on how high the object is above the horizon. The deeper the object is, the