BACHELOR OF SCIENCE (HONS) Study Guide - Telephoto Lens, Eyepiece, F-Number
16 Jul 2022
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Document Summary
Lenses and telescopes: using single lenses to form images. The simplest variety of telescope uses a single lens. The image is formed at the focus of the telescope, which is simply the focal plane of the lens. A piece of film or more commonly these days an electronic detector known as a charged-coupled device, or ccd is placed in the focal plane, and a picture is taken. In this exercise we"ll find out about the properties of a lens that affect the size and brightness of the image it forms. Each group will have a set of 6 lenses for this exercise. We also have a few large-diameter lenses at the front of the room that we will need to share among the groups. The lenses have different diameters and they are curved by different amounts. The two key properties of a lens are its diameter and its curvature.
