Digital Images

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Digital Images, Photo Basics, Understanding Your Camera

Transcript of Digital Images

Page 1: Digital Images

Digital Images,Photo Basics,

Understanding Your Camera

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What’s a PPIIXXEELL?

It’s a “dot”—a square, filled with color

“dpi” = “dots per inch”

More dpi = more information More dpi = sharper image More dpi = larger file More

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144 dpi

186K

72 dpi

60K

36 dpi

24K

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What does the resolution setting mean?

1600x1200= best quality, big file (2 shots per disk)

640x480= lowest quality, small file (24 shots per disk)(Not adequate for print documents,

but good enough for PowerPoint presentations.)

(OK for most print documents.)

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GUIDELINEGUIDELINE::

•For documents to be printed,

use high quality image (200+ dpi)

•For PowerPoint presentations,

use small file size (72 dpi)

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Digital Images,Photo Basics,

Understanding Your Camera

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Which photo is more appealing?

(distant) (close)

GUIDELINE:GUIDELINE: Move in close!

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If at first you’re too far away…

…crop!

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Which photo is more appealing?

(subject centered) (subject off center)

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Which photo is more appealing?

GUIDELINE:GUIDELINE: Observe the “Rule of Thirds”

(subject centered)(subject off center)

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“The Rule of Thirds”

Grid lines

Grid lines

Hot spots

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“The Rule of Thirds”

GUIDELINE:GUIDELINE: Align subject on grid line or hot spot.

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children aligned on bottom grid line

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nature guide on left grid line; children on bottom grid line

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head and monitor on hot spots

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student on left grid; bottle on hot spot

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REVIEWREVIEW::

•Move in close

•Observe “Rule of Thirds”