ZWO Atmospheric Dispersion Corrector

ZWO ADC is voted as  “HOT SKY PRODUCT – 2017” by SKY&TELESCOPE magazine! ZWO Atmospheric Dispersion Corrector is used to reduce the effect of atmospheric dispersion on lunar and planetary images. The prisms are the center of the ADC Material: H-K9L(Schott BK7) Surface Accuracy: λ/10@632.8nm Deviation Angle: 2° Manufactured with a UV-friendly AR-coating Martin Lewis tells you what an ADC is and why do we need it?How to use it? Here is a review of ZWO’s ADC by Martin Lewis. Some test images show the difference between using ADC and without ADC