These Canon EF-mount camera adapters feature either an M42 or wide M48 female thread, allowing you to securely connect a telescope to Canon DSLR and mirrorless cameras for astrophotography.

The W2054A / W2054B adapters feature an adjustable design and are supplied with an adjustment tool. The inner ring allows precise horizontal alignment and is adjusted using three screws located on the side of the adapter.

To ensure correct installation, loosen the three screws to free the inner ring before attaching the adapter. Because the 48 mm edge is relatively thin, slight misalignment may prevent proper threading. Once the adapter is fully connected, simply retighten the screws to secure it in place.