How to improve your Digital SLR Camera
pictures?
By: Scott Karcich
Digital SLR cameras are amazing tools to expand your
creativity and to document special moments. If your
starting out and strive to improve your work master
these five important tips. These tips deal with the
relationship of shutter speed and focal length,
achieving proper focus, stability, handling back
lighting, and the effects of ISO and noise.
Understanding
how the focal length of lenses relates to the
shutter speed.
If your shooting with a 50mm lenses the rule of
thumb is that you can hand hold your camera with
shutter speeds of 1/50th of a second and higher.
With a 200mm lenses that it's 1/200th of a second.
With expensive image stabilization lenses you can
hand hold a 200mmm at about 1/100th of a second
maybe 1/60th of a second if you have steady hands.
One trick I have used to squeeze an extra shutter
speed stop while hand holding my camera is holding
my breath and keeping my arm tight close to my
chest. Knowing your lenses and remembering this
simple tip should yield sharper results in your
photos while hand holding your digital SLR camera.
Understanding the focus system in your camera
Practically every digital SLR camera focuses when
you press the shutter button halfway down. Usually
you will hear a beep and see a green or red square
through the viewfinder. This is what the camera is
focusing on. Then press the button the rest of the
way down to take the picture. Understand that the
computer inside the camera is looking at differences
in image contrast and that difference is what is
focusing the camera. Most digital SLR cameras also
let you change the focus point manually to anywhere
there is a predetermined point in the viewfinder. At
a minimum you will get 9 points of focus up to 45
points of focus. It depends on the model and make of
your digital SLR camera.
While executing my day-to-day shooting I always
start with my focus point in the center of the
viewfinder then I move it according to the subject I
am shooting. It is easy to forget about where you
set your focus point and then wonder why your photos
are off focus or out of focus. So when you start a
shoot the first place to check is where your focus
point is and then center it, this should help you
get more shots in focus.
Stability
and when to use a tripod
If you are dealing with long exposures when shooting
or if the shutter speed exceeds the focal length,
then you need to use a tripod. All tripods are not
the same. If in the studio a lightweight tripod can
be used effectively if you weigh it down with
sandbag or an alterative weighting device. When
outdoors use a tripod on the heavier side is
probably best, it also depending on weather
condition. If there is a lot of wind you really need
to secure the tripod with weight or some tripods
even have a feature where you can spike them in the
ground for more stability.
Any movement during a shot with a long exposure will
almost always render that shot useless and that is
why stability is so important. One of the newest
advancements in camera technology is "image
stabilization" in both lenses and camera bodies.
This new technology is great and its best used if
shooting with two hands on the camera and bracing
your body against something. Still in some shooting
situations there is still no replacement for a good
weighted tripod.
How to handle strong back lighting
Back lighting subjects can be our enemy. Many people
try to shoot a photo with a strong bright window
light in the background, and then wonder why the
shot didn't come out. Why does this happen? The
bright light from the window floods the lens, and
your camera usually can't compensate for it. One way
to combat this is to use a fill flash on your
subject or use a large white fill card. Another
option is to diffuse the strong window light and
fill the subject with a white fill card. Do not be
afraid of backlighting use it to your advantage,
just remember you need to counteract a strong
backlight with a strong fill.
Understanding
the effects of ISO in Digital SLR Cameras
Digital SLR cameras have some of the same
characteristics as film SLR Cameras like
interchangeable lenses, viewfinders, matrix
metering, etc, but they do not handle ISO the
same way. They are similar in that the relative ISO
setting handles the light sensitivity that reaches
the sensor or film. Where they differ is in the look
they achieve in the final product. High ISO speeds
on film have a certain film grain look to them that
can be pleasing, but high ISO speeds on a digital
SLR camera creates noise on the files and the look
is not the same as film grain. In most situations
noise is your enemy. If you want that film grain
look, shoot your digital photos with the lowest
possible ISO and then use Alien Skins Exposure® 2
plug in for Photoshop to achieve that film grain
look.
In closing mastering these five tips will make your
photography stronger, sharper, in focus and properly
lit.
About the Author
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