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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.
iOptron CEM40 CW Shaft Mounting House (Low Latitude)

iOptron CEM40 CW Shaft Mounting House (Low Latitude)

by iOptron
SKU IOP-C40-CWSML
$99.00 - $99.00
$99.00
$99.00 - $99.00
$99.00
Price Match Policy!
  • Designed for the iOptron CEM40 Mount
  • Solves Counterweight Shaft Collision at Low Latitudes
  • Enables Unobstructed Meridian Crossing
  • Essential for Equatorial and Tropical Observing
  • Direct-Fit Replacement Part
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • CEM40 CW Shaft Mounting House (Low Latitude)

    For astronomers using the iOptron CEM40 mount near the equator, this Low Latitude Counterweight Shaft Mounting House is an essential upgrade. It repositions the counterweight shaft assembly to provide critical clearance from the tripod legs at very low latitude settings. This modification prevents physical collisions that would otherwise stop tracking, allowing for uninterrupted imaging and observation across the meridian.

    Solving Meridian Clearance for the CEM40 at Low Latitudes

    A standard CEM40 mount encounters a mechanical limitation at latitudes approaching the equator. As you lower the polar axis, the counterweight shaft angles downward, eventually making contact with the tripod. This accessory is a purpose-built housing that changes the shaft's mounting point, creating the space needed for the mount to operate freely at these low angles without interference.

  • What is the purpose of the CEM40 Low Latitude CW Shaft Housing?

    This is a specialized replacement part for the iOptron CEM40 equatorial mount. Its sole function is to prevent the counterweight shaft from colliding with the mount's tripod or pier when the mount is set to a very low latitude, typical for observers located near the Earth's equator.

    I live in southern Texas (26° N latitude). Do I need this accessory for my CEM40 mount?

    It is unlikely. This housing is typically required for latitudes below 10-15 degrees. At 26° North, the standard CEM40 counterweight shaft housing should provide sufficient clearance for all normal operation, including tracking objects across the meridian.

    Will installing this part on my CEM40 affect its payload capacity or tracking?

    No, this part does not alter the fundamental payload capacity or tracking accuracy of the CEM40 mount. It is a purely mechanical component designed to solve a physical clearance issue. You will, of course, need to properly rebalance your telescope after installation.

    Is the CEM40 Low Latitude housing difficult to install?

    Installation involves removing the original counterweight shaft housing and replacing it with this low-latitude version. While it is a straightforward process for users comfortable with basic mechanical adjustments, we recommend consulting your iOptron CEM40 manual for detailed instructions on accessing and replacing this component.

    Can I leave this Low Latitude housing installed on my CEM40 if I travel to mid-latitudes?

    Yes, you can. While the original housing is optimized for mid-latitudes, the low-latitude version will still function correctly at higher latitudes. There is no need to swap the parts back and forth if you travel with your mount.

    What is the primary sign that I need this CEM40 accessory?

    The primary sign is physical interference. If you find that your counterweight bar or the counterweights themselves hit a tripod leg when you are pointing near the celestial meridian, and your latitude is correctly set for your location (e.g., in Colombia, Kenya, or Indonesia), then this part is the solution.

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  • iOptron 2-Year Limited Warranty