Aperture & Depth Of Field

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Notes on slide 1

Review light, lens, and zoom concepts – the aperture is part of the lens.”F-stops” the numbers associated with each size is an inverse relationship, which can be confusing.

demonstrate shining light through an actual lens.

Also known as deep focus Landscape, architectural, large group portrait photography usually have a large depth of field. Small aperture openingThis picture was taken with a shorter lens with a very small aperture (F-22)opening and also used a tripod.

Also known as shallow focusMacro or close-up photographyLarge apertureCan also be accomplished by increasing focal length. This picture was taken with a medium range lens with a very large aperture (F-1.8)

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Aperture & Depth Of Field - Presentation Transcript

Aperture & Depth of Field
Digital Photography
Apollo Technology Education
Aperture: Controls the amount of light entering the camera through the lens. Every lens has an aperture.
Depth of Field: (DOF) the portion of a photograph that appears acceptably sharp or in focus.
Two Major Variables:
Aperture
Focal Length
Example: deep or broad Depth of Field
Example: a narrow Depth of Field
focal length: 200 mm
Narrow Depth of Field
- Long Focal Length
- Maximize Optical Zoom
Deep Depth of Field
- Short Focal Length
- Wide angle lens
Focal length: 15 mm
Controlling Details