It fits on following iOptron mounts (has a M8 threaded holes on dovetail saddle):
- CEM120
- CEM70
- CEM40 (6" V/D dual saddle with a M8 threaded hole)
- GEM45 (6" V/D dual saddle with a M8 threaded hole)
Specifications
Counterweight- OD: 49mm
- ID: 12mm
- Thickness: 20mm
- Weight: 292g
- Material: Stainless Steel
CW shaft
- Diameter: 12mm
- Length: 60mm
- Thread: M8X1.25mm (both ends)
- Weight: 48g
- CW shaft end screw: No
- Material: Stainless Steel
