Celestron Dew Heater Ring 8" 22451 The only drawback is the

The only drawback is the bigger they get

It is the most lightweight and portable of the three size models

Focal Length of Eyepiece 1 (mm): 25 mm (0

Five internal knife-edge baffles are included to eliminate internal reflections and further enhance contrast

The PowerTank Lithium Pro is for the true power user

Celestron Dew Heater Ring 8" 22451 The only drawback is theThe 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