Photography - Histograms

8/8/2019 Photography - Histograms

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Histograms are graphs that count how many

pixels are at each level between black & white

Black (darker) is going left, white (lighter) isgoing right

Height of graph at each point depends on how

many pixels are that bright.

Can help you learn how many stops up or down

should be used for optimum exposure


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Black > Dark > Medium > Light > White


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-2 Stops Underexposure

Even the whitest

whites (thediamond rings &

bracelet) are

medium gray. No

shadow detail

desired for this

pose, so no loss

there, but

blacks/browns

need distinguishing.

This photograph displayed in Adobe

Photoshop Lightroom 3 software:


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-1 Stop Underexposure

Some very smallhighlights are

reaching towards

white. Skin has

emerged with its

myriad of tones,and the hand and

arms no longer

have a one-

dimensional look.




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Normal Exposure

Pixels are where

they should be: closeto white, but not

clipped. The humps

indicate that values

are spread around a

bit, meaning there isdetail and not a flat,

washed-out

snapshot. More

exposure would be

okay in this case.




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+1 Stop Overexposure

Overexposure

took away the linedetails in the

fingers and showed

additional flaws in

the object surface.If the backdrop of

the hands was

lighter in color, it

would produce a

high key effect.




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+2 Stop Overexposure

Overexposed so

that there are aton of pixels blown

out to 100% white.

As you overexpose

more & more, the

graph moves

further to the right

& eventually clips

as your image

destroys itself.




8/12

Four Generations Timeless Love


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How Full Is Your Cup ??

Consider this analogy: Water is the amount of light that you

allow to pour into your camera during an exposure. You can

adjust the rate of flow from the big bucket of light, but you can

also utilize your digitalized histogram to help guide you as well.


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11/12

Overexposed, but still decent

values to look for detail

I changed hues & increased

blacks/contrast plus sharpen


12/12

Strength :: Determination :: Beauty :: Elegance

Photography - Histograms

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