iOptron ZEQ25/CEM25 Counterweight Shaft Extension Bar

The primary purpose of the ZEQ25/CEM25 Ext Bar is to increase the leverage of your existing counterweights. By moving the weights further from the mount's axis of rotation, you can balance a heavier telescope or use fewer counterweights for your current setup, making your rig more efficient and often lighter.

No, this counterweight shaft extension is specifically designed and threaded for the iOptron ZEQ25 and CEM25 series of equatorial mounts. It is not compatible with other iOptron models or mounts from other brands.

Yes, this is the ideal scenario for the extension bar. If your telescope is only slightly too heavy for your counterweight, adding the ZEQ25/CEM25 Ext Bar will likely provide the extra leverage needed to achieve perfect balance without the expense and weight of an additional counterweight.

Absolutely. If you are currently using two counterweights to balance your telescope, the added leverage from the extension bar may allow you to achieve the same balance with just one of those counterweights, thereby reducing the overall weight of your mount setup.

The ZEQ25/CEM25 Ext Bar is a critical first step. Proper balance is essential for accurate tracking in astrophotography. A 6-inch Newtonian is often at the upper end of the mount's capacity, and this extension provides the necessary mechanical advantage to properly balance longer or heavier optical tubes for better imaging.

Installation is straightforward. You simply unthread the toe-saver stop from the end of your mount's existing counterweight shaft, thread the extension bar on securely, and then re-attach the toe-saver to the end of the new extension bar.