The Caruba T-Mount adapter is an adapter designed for shooting with a telescope and microscope.

The Caruba T-Mount adapter is designed for telescope and microscope photography. It allows you to seamlessly connect an astronomical telescope, terrestrial telescope or microscope to a Canon EOS (EF and EF-S) mount SLR camera, transforming your optical device into a powerful telephoto lens.
Compatibility:
Using the T-Mount adapter is straightforward. It is first attached to the camera body with an EF/EF-S bayonet, and the standardized internal thread on the other end is connected to the T-thread or focal plane adapter of the telescope or microscope. Please note that when digiscoping and astrophotography, the camera's autofocus is not available, but focusing is always performed manually using the optical device's own focusing mechanism. Similarly, it is recommended to use the manual (M) or aperture priority (Av) mode of the camera's exposure programs.
Specifications:
The package includes: