Used 1kg Counterweight for SkyWatcher Star Adventurer - 15.7mm opening Filter Adapter This is especially helpful when

This is especially helpful when observing faint objects

Fully multi-coated optics

Camera adapters to connect C-mount cameras and cameras that mount with M42 threads are included

0” Tube Weight 18 lbs Other Accessories 2” to 1

Celestron: C8

Used 1kg Counterweight for SkyWatcher Star Adventurer - 15.7mm opening Filter Adapter This is especially helpful whenThis is a used 1kg counterweight (actually about 950gm) in very good condition. It is clean, with only a couple of dings in the paint. The inside diameter of the shaft hole is 15. 7mm. We have tested this on the Star Adventurer CW shaft, and it fits. Save FIFTEEN BUCKS off of the new one!