Barlow Lens 2x 1.25"

Specifies the product's connection or connection thread on the telescope connection end. The same adapter dimension must always be available on the telescope.

A standard measurement for accessories, expressed as 1.25 inches. 1.25" is equal to 31.8 millimetres.

The connector or thread found directly on the camera. With this information, you know whether the camera already fits the telescope, or whether an adapter is required.