Assertion: eyepiece's magnification | /r/HasProperty | tripled
Facets:
value: compared to the magnification
type: OTHER
Source sentences:
text: Thus if you insert a 3x Barlow lens into the back of a telescope with 1000 mm focal length, the combined focal length of the telescope and Barlow lens becomes 3000 mm, and the magnification of any eyepiece used with the telescope will be tripled when it is used with the Barlow lens, compared to the magnification without.
text: Paul Couteau (1976) suggests that the minimum magnification necessary for measuring double stars is double the "resolution magnification", usually said to be equal to the aperture (M = D o in millimeters).
text: Thus if you insert a 3x Barlow lens into the back of a telescope with 1000 mm focal length, the combined focal length of the telescope and Barlow lens becomes 3000 mm, and the magnification of any eyepiece used with the telescope will be tripled when it is used with the Barlow lens, compared to the magnification without.