astro.n-minus

Accessory · MSRP $399

Astro-Physics MAXBRIGHT 2" Mirror Diagonal (PMDMAX)

Key specifications

Accessory typeOther
Path length104.1 mm

All specifications

Interface2" nosepiece; 2" eyepiece holder with brass locking ring; 48 mm filter thread
Compatible with2" eyepieces and accessories; 1.25" accessories via the optional ADA125 adapter

About

A 2-inch star diagonal whose mirror carries a dielectric coating of thin-film oxides — no aluminium or other metal — reflecting above 99% across the 4000-7000 angstrom photo-visual range with about five times less surface scatter than an aluminium mirror, and durable enough to be cleaned repeatedly. A recessed brass locking ring under the thumbscrew clamps eyepieces without marring them, and the body is threaded for 48 mm filters.