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When we discussed the raw image format,
we mentioned that each raw file
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is proprietary to the camera
and manufacturer that produced the file.
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This means that certain applications
may not be compatible
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with the raw file
produced by a certain camera.
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You often experience this
if you purchase new equipment,
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but use old editing software
such as older versions
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of Photoshop or Lightroom.
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In some cases, even newer applications
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may not be able to read your file.
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So why does this happen?
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Remember your Rafael stores bits of data.
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Each camera manufacturer stores
this data in a different order.
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Some raw files contain information
that other raw files do not.
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Now, keep in mind, there are thousands
of different camera types out there.
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This inconsistency, coupled
with the volume of camera
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types and manufacturers,
makes it challenging for software
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applications to simply open and interpret
any raw file.
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Take a look at this chart,
which shows you just a
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few of the different raw
file formats from different manufacturers.
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Two popular
ones here that you might recognize.
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Are the Nikon DOTT any file
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and the Canon dot C R2 formats.
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The metadata format in each one of these
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raw file types is different.
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This makes it challenging
for a single application
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such as Lightroom and Photoshop
to work with so many different
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formats.
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To resolve this issue,
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the DNG file
or digital negative was created.
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This format is a lossless
raw image format written by Adobe
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and specifically used
for digital photography.
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The DNG file format offers
a much greater level of compatibility
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with Adobe photo editing applications.
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It is considered universally accepted
because it specifies
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exactly how a raw file should be written
so that each manufacturer
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knows what order to store raw data in.
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Now that we're better
acquainted with DNG files,
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we can explore some of the unique
character tactics of this file type.
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First, DNG files are supported
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by several dozen software
and camera manufacturers.
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The format was created by Adobe,
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but it is openly documented
and openly licensed.
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This means DNG files
have an increased probability
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of remaining accessible
far into the future.
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DNG files are also known to produce
smaller file sizes,
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typically 15 to 50% smaller
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due to better compression algorithms.
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DNG files retain all the original
proprietary file information.
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Zero data is lost
during the conversion process
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from camera RAW to DNG.
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As new cameras come to the market,
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they can be immediately supported
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similar to the DNG file format.
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The TIFF file also offers 16 bit
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color depth in lossless quality.
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For this reason,
similar to RAW and DNG files,
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they're also much larger in file size
than compressed formats such as JPEG.
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When we export photos from Lightroom
to Photoshop,
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they're exported as either
TIFF or Photoshop's
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native file format. SD.
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One of the benefits of TIFF
files is their universal application
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among many different graphic design
and photo editing applications.
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SD files are also considered
less efficient
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than TIFF files in regards
to image processing.
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Later, in the course,
when we export images from Lightroom
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into Photoshop, you'll notice
that the TIFF file format is recommended.
5709
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