Smart_Photography_-_January_2016_

(Nora) #1
There is this setting called Auto
White Balance on my camera. How
does it work and can I rely on it?
Ideally, as the colour of light changes,
you should also change the WB setting
on your camera as explained above.
But photographers are forgetful people
(sometimes they are even negligent!).
Since you may forget to change the
WB setting as dictated by the lighting
conditions, camera manufacturers
provide an easy solution, known as
Auto White Balance (AWB). When set,
this setting takes care of the varying
lighting conditions and automatically
sets your camera’s WB.

White Balance setting that I see on
my camera?
Under difficult lighting conditions
(example – mixed lighting), or when
extra accuracy is desired, Custom White
Balance (CWB) could be used. The
method to set CWB may differ between
makes/models of cameras. Please check
your user manual.

For Canon cameras
a) Keep a white card or Kodak 18%
grey card ready (The 18% grey card
reflects equal amounts of red, green
and blue). I suggest you set your
camera to an ‘average’ exposure setting
like f/8 and 1/60sec at ISO 100.

b) Take a frame-filling photo of the
white card/18% grey card in the
lighting for which you want to set the
CWB.
c) Go to the Custom White Balance
option in the Menu and press SET.

d) Press OK.

For Nikon cameras (On some Nikon
cameras, the method is slightly different)
a) Keep a white card or Kodak 18%
grey card ready. I suggest you set your
camera to an ‘average’ exposure setting
like f/8 and 1/60sec at ISO 100.

b) Along with the marked WB settings
(Daylight, Shade, Cloudy, etc) on your
camera, you will see letters PRE which
stand for Preset Manual. Navigate to
this PRE setting and press the WB
button till PRE start to flash. Now point
the camera to the white card/18%
grey card, fill the frame, and take a shot
When you do so, the picture will not be
recorded, but the camera will record
the colour of the light. This setting
can be stored (please refer your user
manual).

Note 1: PRE will flash only for 6
seconds. You must take the shot within
this time. If PRE stops blinking, press
the WB button again till PRE starts
blinking and repeat the procedure.

Note 2: If the camera has achieved the
correct WB, ‘Good’ will be displayed on
the top LCD panel. If the camera fails
to achieve the correct WB, ‘No good’
will be displayed. This could happen if
you have set a very fast shutter speed

On modern cameras, the AWB setting
is pretty reliable under most lighting
conditions, but not all. AWB is designed
to work within a specific range of Kelvin
temperatures. Depending on the make
and model of your camera, AWB may
work just fine between, say, 3,200K
and 7,000K. This range may take care
of most lighting situations but what if
you are photographing in a room lit by
incandescent lights (2800K) or on a high
mountain where the Kelvin temperature
could be above 8,000K? Obviously, under
such conditions, AWB will not work well

Okay, I get it. But what is this Custom

Various White Balance settings on a Canon EOS 6D

Auto White Balance selected

LEARNING


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Smart Photography January 2016
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