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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron Counterweight - 11 lbs for 19mm Shaft
Celestron Counterweight - 11 lbs for 19mm Shaft

Celestron Counterweight - 11 lbs for 19mm Shaft

by Celestron
SKU CEL-94203
$89.95 - $89.95
$89.95
$89.95 - $89.95
$89.95
Price Match Policy!
  • Adds 11 lbs (5 kg) of balancing force
  • Designed for 19mm (0.74") diameter counterweight shafts
  • Compatible with Advanced VX, CG-5, CGEM, CGEM II, and CGX mounts
  • Large, knurled locking knob for secure, tool-free attachment
1 in stock
Qualifies for FREE Shipping in CONUS on orders over $350.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Celestron Counterweight, 11 lbs for 19mm Shaft

    This Celestron Counterweight provides a crucial 11 lbs (5 kg) of mass to perfectly balance your telescope setup on mounts with a 19mm (0.74") counterweight shaft. It is the factory-specified counterweight for a wide range of popular mounts, including the Advanced VX, CGEM, and CGX series, ensuring optimal tracking accuracy and mechanical health.

    11 lbs of Stability for 19mm Counterweight Shafts

    Engineered to fit the 19mm standard, this 11 lbs counterweight allows you to compensate for the weight of your optical tube and any added imaging accessories. Achieving proper balance is the first and most critical step for astrophotography, as it allows the mount's motors to track smoothly without strain. The counterweight features a large, easy-to-grip knurled knob that lets you lock it securely in place anywhere along the shaft without needing tools, even with gloves on.

    Protect Your Mount's Performance

    An imbalanced telescope puts significant stress on the mount's internal gears, leading to premature wear and inconsistent tracking. By adding this 11 lbs counterweight, you neutralize the load on the Right Ascension axis, allowing the drive system to perform as designed. This results in sharper long-exposure images and protects your investment in the mount for years to come.

  • How do I know if I need this 11 lbs Celestron counterweight?

    If you've added accessories like a camera, guidescope, or heavy eyepiece to your telescope, your mount's original balance will be off. If the telescope is "heavy" on the optical tube side and requires constant motor effort to hold its position, you need to add more counterweight. This 11 lbs weight is the standard unit for achieving balance on Celestron's Advanced VX, CGEM, and CGX mounts.

    Will this counterweight fit my Celestron Advanced VX mount?

    Yes. This counterweight is designed specifically for the 19mm (0.74") diameter shaft used on the Celestron Advanced VX mount, as well as the CG-5, CGEM, CGEM II, and CGX mounts. It will not fit larger mounts like the CGX-L or CGE Pro.

    My CGEM mount struggles to track accurately with my 9.25" SCT and a camera. Is one 11 lbs counterweight enough?

    While a CGEM often ships with one counterweight, a fully loaded 9.25" SCT for imaging will almost certainly require a second 11 lbs counterweight. The goal is to achieve balance with the counterweight(s) positioned as close to the mount head as possible to reduce the moment of inertia, which improves the mount's responsiveness.

    Can I stack multiple 11 lbs counterweights on the shaft?

    Yes, you can add multiple counterweights to the shaft as needed. For best results and to minimize stress on the mount, try to space them out slightly rather than having them all clamped at the very end of the bar. This helps distribute the mass more effectively.

    What's the difference between this Celestron 11 lbs counterweight and other models?

    The key specification is the shaft diameter. This model is made for a 19mm shaft. Other counterweights, even if they weigh 11 lbs, may be designed for larger or smaller shafts and will not fit your mount. Always match the counterweight to your specific mount model, such as the Advanced VX or CGEM.

    Is it better to have one heavy counterweight or two lighter ones like this 11 lbs model?

    Using two 11 lbs counterweights offers more flexibility than a single, heavier one. It allows for finer balance adjustments and can reduce the total moment arm by keeping the weight closer to the RA axis. For most setups on an Advanced VX or CGEM, using one or two of these 11 lbs weights is the ideal solution.

  • Weight 11 lbs (5 kg)
    Counterweight Shaft Diameter 19mm (0.74")
    Counterweight Compatibility Advanced VX, CG-5, CGEM, CGEM II, CGX

    • Celestron Counterweight, 11 lbs for 19mm Shaft

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  • Celestron 2-Year Warranty