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23 Nov 2019
To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f= 200.0mm) is to be focused on an object located first at a distance of 3.5m and then at 50.0m. Over what distance must the lens be moveable?
To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f= 200.0mm) is to be focused on an object located first at a distance of 3.5m and then at 50.0m. Over what distance must the lens be moveable?
Beverley SmithLv2
23 Aug 2019
