The 1.25-inch Atmospheric Dispersion Corrector, or ADC with Bubble Level from ZWO, is a brilliant tool for correcting the scattering effect of light rays in the Earth's atmosphere. Experience Fringe-free Observation
The ADC allows you to view and image bright objects clear of distortions and aberrations. You no longer have to wait for a target to be high enough in the sky for it to be satisfactory to view. With the ADC you can now view objects with perfect clarity no matter their location. ZWO ADC Operation
The ADC corrects the atmosphere's dispersion effect on planets, stars, and other bright objects by using the chromatic cover of two opposing rotating prisms. Levers on the ADC, when separated by 180 degrees, adjust the two rotating prisms and change the compensation effect from nothing to its apex. The attached bubble level helps line this all up!
The atmosphere's dispersion effect influences some wavelengths differently than others. Adjusting the ADC's levers provides a simple way to compensate for this.
Color imaging a planet without an ADC will inevitably result in color fringing and distortion. When the presence of this fringing and distortion is taken away in processing, you wind up with an image with a decreased resolution that cannot be reclaimed. While Mono imaging separates Red, Green, and Blue images, superimposing them helps offset this to some extent. To take advantage of an image's full resolution, a Luminance image should be taken. Use the ZWO ADC, which removes distortions and image shift issues, resulting in an image with more detail. Finally, further processing can produce a complete enhanced final image.
OPT Product Number: ZWO-ADC