Digital_Camera_World_Issue_192_July_2017

4
EXPERT
TIP
correct Any opticAl flAws
Click on the Lens Corrections tab
in the main control panel (Ctrl/
Cmd+Alt+6), and tick the Remove
Chromatic Aberration box. This will minimise any coloured
fringing on high-contrast edges. Tick Enable Profile
Corrections to remove any distortion or vignetting caused
by the lens you’ve used. An extensive database of lenses
is built into the software; in most cases your lens will
automatically appear, but if it doesn’t, select your make
and model from the drop-down menus under Lens Profile.
Set the tonal
range with
a mask
When you set black and white
points in the Basic tab to get a full
range of tones, a neat alternative to
using the O and U clipping indicators is to use a mask view.
To do this, hold Alt while moving the Blacks or Whites
slider. This gives a mask view of the scene and reveals
where the shadows or highlights lose detail. It performs
the same task as the blue or red overlays created by the
clipping warnings, but provides a view devoid of ‘ant’
distractions. Both methods work, but over time, you’ll
find you prefer one or the other for setting your points.
5
6
check for clipping
In the Basic tab, pull Highlights to
-100 to restore detail to the brightest tones. Expand
Shadows by taking the slider to +100 – this will bring extra
detail into the darker areas of the image. The pic will look
a little washed out now; to boost contrast, move Blacks
to the left until you see a thin line extend on the left of the
Histogram. Press U and you’ll see pure black areas in blue
in the preview. Now press O and move the Whites slider to
the right. Pure white areas will show in red. Adjust the
slider until you only have a tiny trace of red on the preview.
get A rich
blue sky
With the points set, press O and U again to switch off the
clipping warnings. Click the HSL tab: this lets you adjust the
Hue, Saturation and Luminance of the individual colours
in the image, so you can use it to give the pale sky more
impact. With the Luminance sub-tab selected, decrease
Blues to -60 and Aquas to -40. The colour will flood back in.
Now switch to the Saturation sub-tab, and nudge up the
Blues to around +20 to give a really rich sky. The other
colours are nicely balanced in this example, but you may
want to boost or cut them in your own images.
128 Digital Camera JULY 2017 www.digitalcameraworld.com