iOptron 4.5kg 20mm Counterweight: 4.5 kg counterweight for the 20mm rod
With this 4.5 kg counterweight, you can balance a heavier astrophotography setup on an iOptron mount with a 20 mm rod. Think of a refractor with a camera, filter wheel, and guidescope: precise balance is crucial for steady, sharp shots.
The counterweight fits, among others, the CEM26, HEM27, GEM28, HEM44, iEQ30, and the MiniTower series and is secured with the locking screw.

Heavy without stacking
One 4.5 kg weight replaces a stack of smaller weights. This keeps the bar short and the setup compact, which benefits rigidity.
Included
- Counterweight 4.5 kg with locking screw
Featured accessories
Increase the leverage with the 20 mm extension for CEM26 and GEM28, then less weight is sufficient.
For whom yes and for whom no
- ✓ Astrophotographers with heavier setups on a mount with a 20 mm rod
- Light setups: choose a weight of 1.35 or 2 kg
Specifications
| Weight | 4.5 kg |
| Boring | 20 mm |
| Attachment | Locking screw |
| Suitable for | CEM25, HEM27, GEM28, HEM44, iEQ30, MiniTower and other 20 mm bars |
You can find more mounts and accessories for this merk at the iOptron merk page.





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