TCOM 288 Lecture Notes - Lecture 6: Wide-Angle Lens, Zoom Lens, Digital Zoom
26 Sep 2016
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Degree to which you can change the focal length of the lens: optical & digital zoom ranges. Continuously changing the focal length during zoom in/out: digital zooming. Electronics on camera simply select the center portion of the long shot and enlarge the cropped area to full-screen size. The enlarged picture proportions reduce image resolution o. Zoom range is unnecessary in the studio o. Important if they have a wide enough angle view. Allows you to shoot in high cramped quarters. Use only when you don"t have a tripod o. Delivers a sharper image than a zoom lens. You can only use a lens that fits the size of the sensor. Distance from the optical center of the lens to the point where the image the lens sees is in focus. Determines how wide or narrow a vista a particular camera can display and how much and in what ways objects appear magnified.
