Amici prism 45° 1.25"

An Amici prism deflects the beam of light from a telescope to a comfortable viewing position and erects the image. This latter feature distinguishes the Amici from a diagonal mirror. With the Amici prism, the image is no longer upside down, so that the telescope can be used for nature observation. An Amici also makes orientation easier when observing the moon.

Amici prisms are only useful for refracting telescopes (refractors), Schmidt-Cassegrain and Maksutov telescopes. A erecting lens is used for a Newtonian telescope.

The prism is made of high-quality BaK4 glass.