Riccardi M63 0.75X reducer

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

The optical elements are treated with ultra-thin coatings. Among others, there are anti-reflective coatings for reducing, and dielectric coatings for increasing reflection.

The optically effective length of the component.

Additional optical elements that are useful for focal astrophotography.