Can you change magnification of a telescope, and if so, how?
Posted: 26 Jun 2016 13:20
Yes. Two easy ways to change magnification: 1) Change to a different focal length eyepiece. Shorter focal lengths increase magnification, longer focal lengths decrease magnification. 2) Add a "Barlow" lens between the telescope and the eyepiece. A Barlow lens system can double or triple magnification by increasing the focal length of the instrument. Excellent quality, multi-coated Barlow lenses are a good way to double your stable of eyepieces at modest cost and with minimal sacrifice of image quality.