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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.
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.
iOptron 2.5kg Counterweight for iEQ45, CEM40, GEM45, CEM60 and CEM70

iOptron 2.5kg Counterweight for iEQ45, CEM40, GEM45, CEM60 and CEM70

by iOptron
SKU IOP-8027-05
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
Price Match Policy!
  • 2.5 kg (5.5 lbs.) weight for precise balancing
  • Fits 28.5 mm (1.12 in.) diameter counterweight shafts
  • Compatible with iEQ45, CEM40, GEM45, CEM60, and CEM70 mounts
  • Secure M8 locking screw with pin mechanism
  • Compact 118 mm outer diameter
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • iOptron 2.5kg Counterweight for iEQ45, CEM40, GEM45, CEM60 and CEM70

    The iOptron 2.5kg (5.5 lbs.) counterweight is the essential accessory for achieving precise balance on iOptron mounts, including the iEQ45, CEM40, GEM45, CEM60, and CEM70. Designed specifically for shafts with a 28.5 mm diameter, this weight secures firmly with an M8 locking screw, ensuring your setup remains stable throughout an imaging session.

    Achieve Perfect Balance with the 2.5kg iOptron Counterweight

    Proper balance is critical for accurate tracking and sharp long-exposure images. This 2.5 kg weight is ideal for balancing lighter telescope payloads, such as small refractors or wide-field camera lens setups. It also allows for fine-tuning your balance after adding accessories like a guide scope, filter wheel, or heavy camera, preventing strain on your mount's drive motors.

    Secure Fit for 28.5mm Counterweight Shafts

    This counterweight is engineered for a perfect fit on iOptron's standard 28.5 mm (1.12 in.) counterweight shafts. The locking mechanism features a robust M8 locking screw with an integrated pin, which provides a secure, non-slip grip that prevents the weight from shifting or rotating unexpectedly. Its low-profile 25 mm height and 118 mm diameter keep your setup compact and manageable.

  • How do I know if the iOptron 2.5kg counterweight is right for my CEM40 with a small refractor?

    The 2.5 kg (5.5 lbs.) weight is an excellent choice for balancing lighter instruments on a CEM40. If your telescope and imaging gear are relatively light and you find the standard counterweight is too heavy or needs to be positioned awkwardly high on the shaft, this smaller weight allows for more precise and stable balancing closer to the mount's axis.

    Can I use this 2.5kg counterweight to fine-tune the balance of my iEQ45 when I add a guide scope?

    Yes, this is a perfect application. Adding accessories often creates a small imbalance that doesn't warrant a full-sized counterweight. The 2.5 kg weight allows you to make subtle adjustments to achieve perfect equilibrium without significantly increasing the total mass on your iEQ45 mount.

    What is the shaft diameter compatibility for this iOptron 2.5kg counterweight?

    This counterweight is designed with an inner diameter (bore) of 28.5 mm (1.12 in.). It is specifically made to fit iOptron mounts that use this shaft size, including the iEQ45, CEM40, GEM45, CEM60, and CEM70.

    How does the locking mechanism on the iOptron 2.5kg counterweight work?

    The counterweight uses a reliable locking screw with a pin. You simply slide the weight onto the 28.5 mm shaft and tighten the M8 screw. The pin engages with the shaft to provide a secure grip, preventing any slipping or rotation during use.

    Is this 2.5kg counterweight compatible with mounts from other brands?

    While designed for iOptron mounts, it may be compatible with any mount that uses a 28.5 mm diameter counterweight shaft. However, we can only guarantee a perfect fit and function with the specified iOptron models (iEQ45, CEM40, GEM45, CEM60, and CEM70).

    What are the physical dimensions of the iOptron 2.5kg counterweight?

    The counterweight has an outer diameter of 118 mm (4.6 in.) and a height of 25 mm (1 in.). Its compact size makes it easy to handle and helps maintain a lower profile on your mount.

  • Weight 2.5 kg (5.5 lbs.)
    Shaft Bore Diameter 28.5 mm (1.12 in.)
    Outer Diameter 118 mm (4.6 in.)
    Height 25 mm (1 in.)
    Locking Mechanism Locking screw with pin
    Locking Screw Thread M8
    Shipping Weight 6.6 lbs
    Shipping Dimensions 9 x 9 x 4.75 in

    • iOptron 2.5kg Counterweight

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  • iOptron 2-Year Limited Warranty