Scopium dielectric diagonal mirror (1.25")

The Coating on the Scopium dielectric zenith of the precision-machined glass material provides 99% light reflectance, resulting in a visibly brighter, more contrasting view, compared to conventional aluminium coatings that reflect only 88% of light. Another measure of quality is the surface finish, where the Scopium dielectric zenith mirror also has a very high Lambda 1/10 value.

Dielectric coatings have numerous advantages over conventional ones: they do not age over time, meaning they retain their reflectivity over time. The coating is much harder, so it does not scratch during cleaning. Last but not least, it scatters less light than aluminium coatings and the resulting image is more contrasty, which is an advantage especially for planetary and binary star observations.

The body of the music mirror is made of aluminium, as opposed to the plastic housing of cheaper music mirrors. The interior is matte black, coated with a light-absorbing material, and has a recessed design for minimal glare.

The unique attention to detail doesn't end there: the zenith mirror has a brass clamping ring so it won't scratch the eyepiece's eyepiece eyelet when attached, and of course the 1.25" filter thread is standard.