Celestron Dew Heater Ring 8"The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope. This must have accessory will improve your observing or imaging nights year round. The Dew Heater Ring permanently mounts to your 8" Celestron Schmidt Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions). How it works The Dew Heater Ring

Celestron offers a free Focuser Utility program for computer control

Patent-Pending StarSense Sky Recognition Technology

which change compression with temperature and cause movement

75) threaded photographic- or visual-adapters

For more information about our SkyAlign technology

This is perfect for Altair Astro RCs and Meade and Celestron SCT telescopes with an inverted rail on top

Since the T-ring is camera-brand specific

The term "Group" refers to the fact that for each type of glass used in the Hyperion eyepieces

Whisper-Quiet Motors

and stacks your planetary images

Readout Noise: ~1e- at x30 gain

Holds cameras up to 1kg in weight