Assertion: eyepiece's length | /r/AtLocation | first part of the diagram
Facets:
Source sentences:
text: In the first part of the diagram, the focal length of the objective lens of the telescope, and the effective focal length of the eyepiece, which is the same as the focal length of the eye lens for the design shown here where the field lens coincides with the image plane, are shown.
text: In the first part of the diagram, the focal length of the objective lens of the telescope, and the effective focal length of the eyepiece, which is the same as the focal length of the eye lens for the design shown here where the field lens coincides with the image plane, are shown.