Aquila Optics 90° Degree dielectric fully metal mirror star diagonal for telescope (fully metal)

Description Aquila Optics 90° Degree fully metal mirror star diagonal for telescope (fully metal) One end goes into the telescope – a 1.25″ eyepiece, or other optical device into the other. Details:  1.25″ 90 degree mirror diagonal Fully metal, two side plates with hex lock screws ensure superb fit and finish Simple and Effective Design for improved viewing comfort Blackened, strong stray light control Dielectric – superb reflectivity (99% !) These are shipped from our Brisbane warehouse – delivery within days. Are these good?  Yes!  These metal diagonals have excellent reflectivity and are built like a tank. Why use a prism diagonal over a mirror diagonal?  Prism diagonals are preferred for slower focal ratios (f/6 ) – Prisms have a shorter optical path, meaning that if you can’t rake out the focuser in enough to reach focus, a prism diagonal may help. Questions?  Call us on 1300 ASTRODOG or just use the form! Please enable JavaScript in your browser to complete this form.Name *e.g. "Peter"Contact Number *Email *Product you have a question aboutYour Question *EmailSubmit