How Do You Use The Barlow Lens With The Skywatcher SK804AZ3 Short Tube Refractor Telescope?
A Barlow lens can be attached to your telescope to increase the magnification power. It was named after Peter Barlow (1776-1862), professor of mathematics at the Royal Military Academy of Woolwich. A Barlow lens decreases the field of view and increases the focal length. It provides relief to the viewer’s eye and lessens spherical aberration in the eyepiece. Here is how you can use a Barlow Lens with the Skywatcher SK804AZ3 Short Tube Refractor Telescope. Note that you can insert the Barlow Lens in two ways for a better view from the telescope. The lens can be placed between the focuser and the eyepiece in a reflector or between the focuser and the diagonal. By doing this, you get greater magnification. When you place the Barlow lens between the focuser and the diagonal, the 2X lens can work as 3X. Loosen the thumbscrews near the focuser and insert the Barlow lens. Fix the thumbscrews when done. Use the Barlow lens by inserting it between the focuser and the diagonal of the refractor t
