chapter 2: the lens. focal length is the distance between the center of a lens and the film plane...
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Different Focal Lengths have different Angles of ViewTRANSCRIPT
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Chapter 2: The Lens
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Focal Length is the distance between the center of a lens and the film plane when focused at infinity
![Page 3: Chapter 2: The Lens. Focal Length is the distance between the center of a lens and the film plane when focused at infinity](https://reader033.vdocuments.us/reader033/viewer/2022050813/5a4d1b677f8b9ab0599b0ca0/html5/thumbnails/3.jpg)
Different Focal Lengths have different Angles of View
![Page 4: Chapter 2: The Lens. Focal Length is the distance between the center of a lens and the film plane when focused at infinity](https://reader033.vdocuments.us/reader033/viewer/2022050813/5a4d1b677f8b9ab0599b0ca0/html5/thumbnails/4.jpg)
Aperture = Focal Length / DiameterAperture controls the amount of light entering the camera & Depth of Field
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Depth of Field = the depth of the Plane of Sharp Focus
(The plane on which the camera is focused or sharp)
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Bokeh is the result of a very wide aperture
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Wider depth of field = more focus
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Plane of Sharp Focus can vary depending on your Depth of Field
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Opening Up = More lightStopping Down = Less light
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Plane of Sharp Focus can vary depending on your Depth of Field
f/1.8 f/8 f/22
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Use your Focusing Ring to set the Plane of Sharp Focus
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Keep in mind, changing your aperture affects your light meter reading…
f/1.8 @ 1/1000s
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So when you change your aperture, you must also change your shutter speed
f/1.8 @ 1/1000s f/11 @ 1/15s