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Distortion
Distortion makes lines which are really
straight appear curved in the image.
Distortion is usually worst with zoom
lenses, especially at the extremes of the
zoom range. When straight lines bow
outwards, it’s called barrel distortion; when
they bend inwards, it’s called pincushion
distortion. Distortion often goes unnoticed
when shooting natural subjects with no
straight lines, but can still rear its ugly head
when level horizons appear in landscape
or seascape images.
Distortion can be corrected using Auto
Distortion Control in the Shooting
menu; this requires a compatible lens and
only works on JPEG images. It can also be
tackled using Distortion Control in the
Retouch menu or in post-processing.
However, remember that all these
methods crop the image.
DISTORTION
Distortion was exaggerated in post-processing—
it’s all too obvious in the upper part of the
building. 18mm, 1/125 sec., f/13, ISO 250.
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Chromatic aberration
Chromatic aberration occurs when light
of different colors is focused in slightly
different places on the sensor, and appears
as colored fringing when images are
examined closely. The D5300 has built-in
correction for chromatic aberration during
processing of JPEG images. Aberration can
also be corrected in post-processing; with
RAW images this is the only option.
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NIKON D5300
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Nikon D5300 Ch7 184-207 P2 RY.indd 192Nikon D5300 Ch7 184-207 P2 RY.indd 192 19/02/2014 17:0919/02/2014 17:09
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