TS Optics ADC Atmospheric Dispersion Corrector

When planets or the moon stand close to the horizon, often the only thing you can see is a blurry disk with color shift, like through a prism. This effect happens because of diffraction of our atmosphere, red and blue light are differently refracted. The closer the objects stand to the horizon, the stronger the effect occurs.

The ADC corrects the effect. Simply installed between camera/eyepiece and focuser, it provides sharper planetary images, even close to the horizon.

How the ADC works

Our atmosphere diffracts the light in different ways, depending on the wavelength. Red light is diffracted differently than blue light. The two adjustable prisms inside the corrector compensate this atmospheric effect. One basically neutralized this color shift. The adjustments can be done during observation or photography. You can immediately see the effect. The color fringing is removed and both details and resolution are improved.

Connection to telescope and connection of eyepieces or cameras

The TS-Optics ADC consists of three parts, that can be screwed together via a T2 (M42x0,75) thread.

• 1.25" receptacle with T2 male thread
• The middle part, the corrector, with a T2 female thread on the telescope side and a T2 female thread on the camera/eyepiece side
• 1.25" adapter suitable for eyepieces with T2 thread

This means you can attach the ADC to each telescope with 1.25" or with T2 thread. You can also connect all customary cameras or eyepieces via the T2 thread or via the 1.25" receptacle.

Features at a glance

• Simple connection via T2 and 1.25" on both sides
• 30 mm free aperture
• Up to 99% light transmission due to high-quality coating of the prisms, planetary images remain bright and contrast-rich
• Convenient operation, eyepiece or camera don't have to be removed
• Usable with all telescopes; you achieve best results with f/10 or slower. For more light-sensitive telescopes we recommend using a Barlow lens

Delivery contents

• Atmospheric Dispersion Corrector
• Two connection adapters to 1.25"
• Dust protection caps