Most images have high contrast between very
bright and very dark shades. The renowned photographer Ansel Adams
developed a method of dividing these shades from pure white to pure
black into eleven sections or zones.
Our eyes are capable of
seeing all of these zones but a camera's digital sensor or film is not.
It can only distinguish about five of them so, depending on how the
exposure of the camera is set, some parts of an image will inevitably
be lost (become black or white) unless we do something to help it;
either by reducing the contrast it has to cope with or when we
process/develop the image.
Joanne about High Contrast -
I have a Sony DSC-T1 and love it..my main problem
is when I take a
picture outside in bright sunlight with shadows. The shadowed areas
always seem to turn out dark.
I usually have it set on the auto setting..maybe I
need to put it on the full sun setting??
Thank you for your enquiry.
A digital camera captures an
image on a sensor. This sensor is not able to record such a wide range
of light to dark (contrast) as our eyes. The result of this is that,
either the sensor loses parts of the scene that are very dark or parts
which are very bright. In your case, your camera is exposing for the
brighter parts of the scene so you are losing detail in the darker
I don't know your specific camera but most cameras
the capability of adjusting the exposure to allow you to expose for the
areas of the scene that are more important for you. This should be
explained in the camera's manual.
There is a section at www.better-photographs.com
that explains this in more detail - www.better-photographs.com/exposure.html
A tutorial which explains how to analyse your
shots using histograms - www.better-photographs.com/histograms.html
A good book which goes into much more detail - www.better-photographs.com/photography-books.html#BP
And finally, a way in which you can lighten the
parts of an image which are too dark - www.better-photographs.com/too-dark.html
I hope this helps you.
Enjoy your photography.
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