Baader T-2 Amici Prism Diagonal Body

An Amici prism provides a correctly oriented image, meaning 'up' is up and 'left' is left. This is essential for terrestrial spotting, nature observation, and astronomical sketching, whereas a standard mirror diagonal typically produces a mirror-reversed image.

The unit features a generous 31mm clear aperture, which is designed to minimize vignetting. It performs exceptionally well with most standard eyepieces, though you should check your eyepiece's field stop diameter to ensure it doesn't exceed the 31mm limit.

The T-2 thread is a standard, versatile interface that allows you to screw this diagonal directly into a wide range of adapters, cameras, and other accessories. It creates a secure, rigid connection that is much more stable than a standard push-fit eyepiece holder.

BBHS stands for Broad-Band Hard Silver. These coatings provide superior reflectivity across the entire visible spectrum, resulting in brighter, higher-contrast views compared to standard aluminum coatings, while also being significantly more durable against environmental wear.

Yes. Because it uses Zeiss-spec optics and precision engineering, it is designed to be aberration-free. You will find that it maintains sharpness and contrast even when pushing your telescope to higher magnifications.

The optical path length is 47.5mm. This is the distance light travels through the diagonal, which is a critical measurement when calculating back-focus requirements for your specific telescope setup to ensure you can reach focus.