The Canon Magazine 83
EOS S.O.S
igital Lens Optimizer
is a feature that’s
found in Digital
Photo Professional, but
which is also now finding a
home in a growing number
of EOS cameras. It’s an
advanced form of lens
correction that essentially
takes care of a range of optical
aberrations in one automatic
hit. Despite requiring a lot of
processing grunt, this option is
now available in the Lens
aberration correction menu of
the EOS R and RP, 5D Mark IV,
90D and 250D.
One of Digital Lens
Optimizer’s primary jobs is to
combat the loss of clarity,
which is caused by a
combination of the low-pass
filter in front of the sensor,
diffraction when shooting at
small apertures and chromatic
aberration – which is why the
separate functions that deal
with these aspects disappear
from the menu when Digital
Lens Optimizer is switched on.
But it goes further than that,
correcting spherical aberration
(where an image is un-sharp in
the centre), coma (where
points of light at the edge of a
picture look like blurred comet
tails), sagittal halo (another
type of blur) and other optical
aberrations that aren’t
addressed by the standard
lens corrections.
As with most of the other
in-camera corrections, there is
a risk of noise being increased
as Digital Lens Optimizer does
its thing. It can also be a little
aggressive, accentuating
edges of objects too much,
although you can reduce the
current Picture Style’s level of
sharpness to
compensate for this.
Besides, you can
always deactivate it,
as you can with all
the other individual
correction options.
Shoot Raw and you
can apply Digital Lens
Optimizer in Digital
Photo Professional,
where you can adjust
the strength of its
corrections.D
Using Digital Lens Optimizer
The shooting speed may get slower with this option enabled, but it is the king of corrections
GET IT OPTIMIZED
Chromatic aberration and diffraction are
corrected automatically with DLO, so those
options are no longer displayedSchool tip EOS Menus
Reset the options if you lose your bearings with settings
THE FIRST option you see in a
sub-menu list on your camera is the
default setting – the one that’s set
when the camera is shipped – and
the one that it reverts to when you
select ‘Clear all the camera settings’
in the yellow menu. With lens
aberration corrections, the default
setting is ‘Enable’ for some and
‘Disable’ for others.If you notice that some menu
options are greyed out, this means
that a function is incompatible with a
current shooting mode, or there is a
conflict with another menu option
that’s enabled. Some cameras have a
shortcut for navigating the menus
quickly: tap the Q button, or in some
cases, the INFO button to be taken to
the first page of each coloured menu.DLO^ off^
DLO^ on^
WB
SET AFISO