Overview

Newtonian focus


'Newtonian focus' can also refer to...

 

More Like This

Show all results sharing this subject:

  • Astronomy and Astrophysics

GO

Show Summary Details

Quick Reference

A focal position for a reflecting telescope at the side of its tube, at right angles to the incoming light. Light reflected from the main mirror is diverted to the Newtonian focus by a flat diagonal mirror, or a prism, higher up inside the tube. In a standard Newtonian telescope, the focal ratio and focal length are the same for the Newtonian focus as for the prime focus.

Subjects: Astronomy and Astrophysics.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.