User Manual
Page 19
...POLARIS 130 The Newtonian Reflecting Telescope astronomers use focal reducers to focus in you eyepiece. Optical tube focal length 650mm Objective lens diameter (refractors) big the mirror or lens is on the Polaris...mirror has a diameter various eyepieces. Mount Large German Equatorial Image Focalisée For Vis D'inclinaison du Miroir Primaire example, the Polaris 90 Refractor has slow focal ratio at...moving. Primary mirror diameter 130mm (5.1") Telescopes are always described by how Focal ratio f/5 large their primary mirror/lens is . POLARIS 127 Optical tube design ...
...POLARIS 130 The Newtonian Reflecting Telescope astronomers use focal reducers to focus in you eyepiece. Optical tube focal length 650mm Objective lens diameter (refractors) big the mirror or lens is on the Polaris...mirror has a diameter various eyepieces. Mount Large German Equatorial Image Focalisée For Vis D'inclinaison du Miroir Primaire example, the Polaris 90 Refractor has slow focal ratio at...moving. Primary mirror diameter 130mm (5.1") Telescopes are always described by how Focal ratio f/5 large their primary mirror/lens is . POLARIS 127 Optical tube design ...