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Photo Articles
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Get The Most Out Of
Your Camera. (Part 1)
By:
TJ Tierney
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Did you ever see an image where only a small part of it is
sharp? Using the aperture ring correctly an maximize the artistic look of your image.
Not only does
it determine the depth-of-field, it also has the
power to direct the human eye.
The human eye is instinctively drawn towards noticeable points of
an image. These are usually the sharpest and most important parts
of an image. Using a wide aperture to limit the area of sharp
focus can direct attention to the most important elements of your
image and blur out any off-putting backgrounds.
This isn’t that hard to accomplish, and can be blissful if done
correctly.
Lets start off with understanding depth-of-field, aperture and
f/stops.
Depth-of -field: The distance from the front to back that is in
reasonable sharp focus is called the depth-of-field. There are two ways of controlling depth-of-field: Use a small aperture or focus
on a point farther away from your camera.
Aperture and f/stops: The aperture is an opening in the centre of
the lens through which light passes. The amount of light, which
passes through an aperture, is indicated by f/stops. The lower the f/stop the more light that passes through the aperture. Opening up
one full f/stop doubles the amount of light entering the camera.
F/4 admits twice the light of f5.6.
By selecting a small or narrow aperture (f/16 or up), all or most
of the scene will be reasonably sharp. This is ideal for landscape
photography. By using a small aperture you increase the
depth-of-field.
By selecting a large or wide aperture (f/5.6 or below) you decide
which part of your image is sharp. This is ideal for taking
pictures of wildlife, portraits, sport and small objects. By using
a large aperture you decrease the depth-of-field.
The smaller the f/number, the wider the aperture.
There is about twice the depth-of-field behind the point of focus
as there is in front of it, using any aperture.
Now you know how to isolate your subject, so it’s time to put it
to use. Set your camera to aperture priority (AV) mode, and then
select a large aperture (f/2 - f/5.6). By doing this the camera
will select the shutter speed automatically. If you are shooting
wildlife choose a low viewpoint to maximize the image, try putting
the camera lens at eye-level with the subject.
While the above will help to isolate you subject, it’s only a
start. Know your subject, especially when shooting wildlife. Don’t
be fooled into thinking all elements of an image must be sharp to
be considered a good photo.
TJ Tierney. Award winning Irish Landscape Photographer. If you
are looking for more tips visit:
Photo tips. To view some of his images visit his on-line
gallery:
Pictures of Ireland |
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Article Source:
http://www.ArticleJoe.com |
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