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5
Corrections and JPEGs
Lens corrections are best applied to raws
as the metadata is used to determine the best
fix. As for JPEGs, you can manually choose a
lens profile but be aware that Lightroom won’t
be able to account for any previous crops or
processing applied to the JPEG, so the fix may
not be accurate.
DxO is also effective for correcting lens distortion
6
Use plug-ins
There are plenty of excellent options
for lens correction outside Lightroom. DxO
PhotoLab 2 is superb – it applies automatic
fixes to every image based on DxO’s
unparalleled database of lens issues. You
can round-trip raws between Lightroom
and PhotoLab 2 using File>Plug-in extras.
Add a grid to help
you see where your
image has distorted8
Remove colour fringing
Colour fringing can occur when pixels
become misaligned. It’s more prone to
happen along high-contrast edges and
with wideangle lenses, especially wideangle
zooms. To fix fringing issues automatically,
check ‘Remove Chromatic Aberration’.7
Turn on and size the grid
When manually correcting a lens, a
grid can be helpful. Press Cmd/Ctrl+Alt+O
to view the grid. Then hold Cmd/Ctrl to alter
the size and opacity. You can tailor it to the
natural lines in your image then use the
manual lens correction sliders to fix.