Monday, 23 June 2014 16:41

## L7-04: DEPTH OF FIELD AND FIELD OF VIEW

• ID Code: L7-04
• Purpose: Demonstrate depth of field as a function of aperture setting, and to demonstrate field of view as a function of zoom setting on a TV lens.
• Description:

(1) Depth of field: Open the lens aperture with the Fresnel spotlight off, set the camera to full zoom (100), and place the camera at the closest distance at which it is possible to focus on the nearest can. Focus on the middle can, and observe the focusing of the extreme cans (photograph at right). Then turn on the spotlight so that it illuminates all of the cans and close the f-stop so that the lighting level is the same as before. Observe that the depth of field increases, because the increase in light level allows use of a smaller aperture (photograph at left).

Field of view: Vary the zoom and observe the change in the size of the field of view.

• Availability: Available
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Illustrate how a focal plane shutter works Read More
• #### L7-03: SHUTTER SPEED OF A CAMERA

Measure the shutter speed of a camera Read More
• #### L7-04: DEPTH OF FIELD AND FIELD OF VIEW

Demonstrate depth of field as a function of aperture setting, and to demonstrate field of view as a function of Read More
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• #### L7-16: GALILEOSCOPE

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• #### L7-21: MAGNIFYING GLASS - TV

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• #### L7-22: MICROSCOPE - TV

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• #### L7-23: ASTRONOMICAL TELESCOPE - TV

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• #### L7-24: TERRESTRIAL TELESCOPE - TV

Illustrate how a terrestrial telescope works Read More
• #### L7-25: GALILEAN TELESCOPE - TV

Illustrate how a Galilean telescope works Read More
• #### L7-31: PRINCIPAL PLANES

Illustrate principal planes of a compound lens system Read More
• #### L7-32: FIELD LENS

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• #### L7-33: OVERHEAD PROJECTOR - DISSECTED

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• #### L7-34: SLIDE PROJECTOR - DISSECTED

Show how a slide projector works and to view its parts Read More
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• #### L7-42: VIRTUAL IMAGE - MIRROR AND LENS

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• #### L7-43: Telephoto Lens Model - Point Source

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