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Before we explore the
detail adjustment panel, it's important
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to understand the concept of noise
relevant to photography.
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When we take a photo with our DSLR,
our camera,
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the image is recorded
onto our digital image sensor,
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an important concept in photography
which is relevant to
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our digital sensor, is ISO sensitivity.
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The ISO on our camera can be adjusted
and one of its primary functions
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is to control the sensitivity
of our image sensor to light
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in perfect lighting conditions.
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We can make our image sensor
less sensitive to light, which produces
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less grain in our overall composition.
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As a general rule, in darker
lighting conditions, we require a higher
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ISO sensitivity so that our image sensor
is more sensitive to light.
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If the ISO sensitivity is set to high,
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we can sometimes end up with very grainy
images.
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This illustration provides
a visual example of grain
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or in other words,
noise found in a photograph.
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The concept of noise can be a
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tricky subject because too much
noise leads to a grainy photo,
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whereas too little can sometimes equate
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to an image
with a low degree of sharpness in clarity.
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The detail panel in Lightroom
allows us to adjust
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the level of noise
that is present in our photograph.
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If the image is not sharp enough, we can
add noise using the sharpening adjustment.
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If there's too much noise,
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we can use the noise reduction
to reduce the grain in our image.
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