Orion 09863e Telescope counterweight

11 lb. Counterweight for Atlas & Sirius Mounts For heavier telescopes and astrophotographic setups, an extra counterweight or two may be needed. These counterweights have an attractive finish and tri-lobe lock knob for easy grip. The 11-lb. counterweight fits the Atlas EQ-G and Sirius EQ-G GoTo mounts. Counterweight center bore measures 0.8" (20.32mm) in diameter. Not compatible with Atlas EQ-G Counterweight Shaft Upgrade #10144.

- Extra 11-pound counterweight designed for the Orion Atlas EQ-G and Sirius EQ-G GoTo equatorial mounts;
- Helps balance especially heavy telescopes and instruments on the Atlas EQ-G or Sirius EQ-G equatorial mounts;
- Ideal for balancing heavy astrophotography gear;
- Features a nylon-tipped, tri-lobe lock knob for easy grip - even while wearing gloves in the field!;
- Optimize the balance of your Atlas or Sirius EQ-G telescope mount for smooth and accurate tracking, panning, and slow-motion position adjustments.