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Getting Sharper Images

Disappointed in your new camera? Are
you failing to live up to your own expectations, and are you
completely unable to reproduce the crystal clear images you see other
photographers take on a daily basis? Before you rush out to buy a new
camera, lens or other emotional crutch it is worth considering two
things, namely your technique and your camera settings. An expensive,
top of the range digital SLR can produce decidedly average images
that are far more blurry than those taken by a cheap point-and-shoot
digicam. Hopefully this guide will right your wrongs and help you fix
that annoying blur that keeps appearing on your images. I am of
course assuming that you do want to be rid of blurry images, there
are times when a certain amount of blur actually enhances the picture
(when photographing a fast moving object such as vehicle whilst the
subject should be in crisp focus it is often advantageous to leave a
lot of motion blur in the background scenery). So if you are bothered
by blurry images and want to learn how to capture sharper pictures
please read on.
Before taking any pictures you should learn
how to hold a camera properly. This may seem an intolerably daft
thing to suggest (how hard can holding a camera be?) However many
amateurs fall down at this first hurdle without ever realising they
are making a mistake. It is important to consider posture when you
are taking a photograph, choose an appropriate stance when lining up
your shot. If possible you should lean against a building, tree,
wall, or fence to steady yourself. Keep your elbows tucked in tightly
by your sides, and if you are trying to take photographs on a windy
day wait for a break in the gusts before depressing the shutter
release. Many digital cameras now come with an automatic image
stabilisation system (discussed later) that will help reduce your
blurry images but it often only has limited effectiveness under
certain conditions so it is important to consider proper technique
before falling back on technology. It is also worth considering
timing your shorts with your breathing; take a deep breath and hold
it when you press the shutter release. This technique is used by
everyone from hunters to Olympic biathletes and is equally applicable
to photography.
Now let us consider the technology that you
can use to help you capture sharper images. Adjusting the shutter
speed is obviously the primary means of eliminating blurry subjects;
the faster you set the shutter speed the less impact shaky hands will
have on the finished photograph. If you do increase your shutter
speed you must remember to increase your aperture as a means of
compensation, although like everything in photography it is not that
simple as increasing your aperture will make focusing far more
difficult. Conversely if you make your aperture smaller then you will
need to increase the shutter speed again; it is a delicate balancing
act and you will have to practice under varying conditions until you
find combinations that work for both you and your equipment.
Eventually you will begin to know instinctively what settings work
for certain conditions. You should also consider increasing the ISO
of your shots, this will allow you to use a smaller aperture and
quicker shutter speed but you will increase the amount of noise that
is visible on your photographs. This varies depending on the
conditions in which you are shooting, again you should attempt to
balance the settings on your camera until you achieve a result you
are satisfied with. Practice makes perfect, and if you are new to
digital photography then you should experiment with these settings as
often as you can until you are comfortable with their operation and
can anticipate what result you will get when varying the shutter
speed, aperture and ISO. Many new lenses and camera bodies now
feature a form of image stabilisation (Image Stabilization to Canon,
Vibration Reduction to Nikon and MegaOIS to Panasonic), but it is
important to remember than in certain cases these will not help
correct "shaky hands" syndrome, whilst it will reduce it to
some extent the main function of image stabilisation is to reduce
blur that is caused by the almost imperceptible shaking of the lens
during shooting. The proprietary versions are becoming more advanced
with each revision and it is certainly worth enabling image
stabilisation if your camera features this technology.
No
manner how troublesome it may seem it is always worth investing in a
good quality tripod or monopod if you are serious about taking sharp
images. Whilst it was true in the past that they were bulky, heavy
and generally annoying to carry over any distance modern alloys and
construction techniques allow for far lighter, stronger tripods that
will not break the bank. If you are new to digital photography it may
seem counter-intuitive to carry around a tripod when you plan to use
your camera, after all one of the reasons many people purchase a
digital camera is for their portability and ease of use. However when
you do finally take some shots using a tripod you will realise
exactly what you have been missing out on and will not want to go
back to hand-held photography. There are many times when carrying a
tripod or monopod with you simply isn't practical, and you can still
take perfectly sharp images without a tripod if you adhere to proper
techniques and know how to use your camera settings effectively.
However if you can carry a tripod with you I do recommend you give it
a try. A good quality tripod will almost eliminate camera shake and
allow you to more accurately predict how your image will turn out.
When using a tripod you also have the advantage of being able to use
either a remote shutter release or a timer function. Almost all
digital cameras feature one of both of these functions that will go
some way to helping you take far sharper images. The most obvious
benefit of a tripod is that because you camera is far more stable you
can relax your shutter speed and other settings somewhat as you will
not have to compensate for shaking hands.
When taking pictures
with modern digital cameras it is easy to rely on the auto-focus to
take care of your focussing, and in many cases this will not hamper
the image quality to any discernible degree. On occasion however the
auto-focus does get it wrong, so learning how to focus your camera
manually is an important skill that every photographer should
possess. If you have increased your aperture and reduced your shutter
speed to help you get sharper images then the auto-focus will often
become less accurate; with a large aperture even being a small amount
out of focus will result in your final image being very blurry. As
with other settings on your camera it is important that you
experiment with the focus settings on your camera and lenses, with
practice and experimentation eventually you will be able to sum up
your subject in an instant and focus accordingly. It is of vital
importance that you keep your lenses and camera clean, a smudged lens
will never allow you to focus correctly. Even if to your eyes the
lens does not appear to be dirty if you are having problems producing
sharp images this may be why; try giving your lenses a proper clean
(or have them professionally cleaned if you do not feel confident
doing it yourself). You should also check that your camera sensor is
not dirty; this can produce blurry patches and blotches on your
photographs.
If all else fails and your favourite photograph
has still come out looking decidedly blurry you can always attempt to
sharpen and correct it using image or photo editing software. Most of
these packages feature a simple "sharpen image" function,
however if you are correcting blur that only occurs in certain areas
you will have to experiment with selecting areas of your image and
only correcting those portions of the photograph. The "sharpen
image" function often functions much like increasing the ISO of
your camera does, however it will bring out the graininess of images
far more than a simple ISO adjustment. Your mileage will vary
depending on the quality of the original image and the software
package you are using, however bear in mind that when you begin to
apply lots of post-processing it becomes obvious to spot the areas
that have been adjusted to even an untrained eye. If you intend to
process your images after you have downloaded them to your PC then it
is worth experimenting with your image editing software in the same
way that you should experiment with your camera settings, eventually
you will establish a "routine" of tools and functions that
you will perform depending on the quality of the image.
I hope this guide was of some use to
all of the budding amateur photographers who visit The Photography
Website. It was not very long ago that I was new to photography
myself and I know how frustrating it is to have to discard a
beautifully composed image because it has turned out blurry and no
amount of post-processing will remedy the problem. If you spend some
time learning the more advanced functions of your camera and
experimenting with different settings in different conditions you
will be rewarded with images that are of a far higher quality than
you imagined you were capable of. Practice as much as you can and
your photographs will begin to reflect the time you have invested in
learning the subtle nuances of digital photography. Many thanks to the Photography Website for this article!
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