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  Category: Articles » Arts & Entertainment » Photography » Article

How Do Filters Work?

By Smith James

Wide-angle lens: is the choice of most landscape photographers. They
allow you to include as much of the scene as possible when you look in
your viewfinder with a wide focal length of 17 mm to 40mm.

Photography is defined as ¡°The art or process of producing images by the
action of light on surfaces sensitized by chemical processes.¡±

Seeing the sun rise up out of the oceanfront may be absolutely
astonishing to someone who has never been to the beach. It¡¯s all relative.

Most importantly, get as involved with what you love as possible. Learn as
much as you can about photography and what makes good photography.
Subscribe to magazines, read books, look at winners of photography

There are different ways of finding photography jobs, depending on the
type of job you are looking for and your experience. You can begin by
creating a resume and portfolio of your work.

How Do Filters Work?

If you are a professional photographer, you must have a set of filters in
your camera equipment. Even if you are just an amateur, you probably
have one or two filters. What are filters? Why do photographers buy
different filters? How do they work?

Camera filters are transparent optical elements that change light
properties entering the camera to improve the recorded image. Filters
affect the different properties of an image such as sharpness, contrast,
color, highlight flare, and light intensity. It can alter one or a combination
of these properties, and can also create various special effects. Camera
filters are connected to the front of the lens. Aside from its features, it
also protects the lens from elements such as salt air. Some cameras need
lens adapters to be able to use filters.

Filters work the same whether you use them on a digital camera or film.
There are just a few differences to be considered. Filters that can reduce
excess contrast such as polarizers are helpful in a digital camera because
digital is more inclined to blow out highlights. Digital cameras are also
known to be less sensitive to ultraviolet light, thus, ordinary UV filters may
not be needed. Also, infrared filters are easier to use in digital cameras.

Some Filter Types

There are different kinds of filters for a camera and each has its own

- Ultraviolet filters. As the name implies, this type of filter absorbs
ultraviolet light. Cameras, especially ones that use film, have high
sensitivity to the invisible light known as ultraviolet light. This is common in
making outdoor shots, especially in highly elevated places where there is
only a thin layer of atmosphere that absorbs the ultraviolet light.

Without UV filters, viewing far images can be difficult because UV causes a
haze that diminishes details with farther distance. UV filters are available in
various absorption levels measured by the percentage of transmission at
400 nanometers. A filter that transmits 0% is ideal for long distance and
aerial shots. For normal situations, a UV filter with 29% transmission is
generally good enough.

There are so many ways that photography crosses our lives each day.
There are a lot of opportunities for someone looking for photography
jobs. With the tremendous technological advances in the art of
photography, it is no more just fun and frolic but has acquired the
dimensions of a full-fledged profession.

Whatever your reasons, a photography contest can be a fun and
rewarding experience for you. To find out all you need to know about
entering a photography contest, read on.

A very well done portrait will at least contain one element that reveals
what the subject¡¯s personality and attitude or any other traits or features
that is natural to the person.

You will also want to check any and all requirements to the contest and
make sure you qualify. You will then want to check for any fine print and
be sure you agree with the terms.

- Infra-Red filters. These filters are used to reduce visible light. Filters that
can totally absorb visible light and transmit only infrared lights are useful for
situations like recording heat effects and aerial haze penetration.

- Natural density (ND) filters. ND filters are used when light intensity is
high and proper exposure needs to be attained or when a specific lens
opening is required for sharpness purposes. This type of filter evenly
absorbs light throughout the visible range which alters the exposure
effectively without the need to change lens opening or do color shifts.

- Polarizing filters. Polar filters or polarizers enhance contrast, color and
reflection control. It has a different optical principle compared to other
filter types. Polarizing filters allows light to pass through in just one
vibratory direction. Different alignment can produce different effects to
the image. If the filter is aligned perpendicularly to the polarized reflected
glare, the result would creat stronger colors because true-colored
reflection will pass through.

Polarizers are increasingly being used for outdoor shots to improve
contrast and color saturation. A blue sky can be darkened by a polarizing
filter, but it has to be blue in the first place. Polarizers can also minimize
and control reflections from water or glass surfaces. To get the best
results, an angle of 33 degrees incident to the surface is advisable. The
effect can be seen by viewing through while the polarizer is rotated. An
object in water can appear as an object out of water without having the

Optical filters can be a good investment for those who want to make a
living out of photography. It allows for different kinds of shots with special
effects. It also makes an image look more alive by the different features
and effects these filters have to offer.

But even when taking pictures just as a hobby, having some of these
filters will be necessary to get the image of clarity desired. Taking a shot
without a filter is indeed different from a shot with one.

There are just some considerations that need to be thought about
before buying filters. Different types of filters are obviously for different
purposes. It is best to determine what the main purpose is and what type
of situation is commonly encountered.

There are different ways of finding photography jobs, depending on the
type of job you are looking for and your experience. You can begin by
creating a resume and portfolio of your work.

Underwater photography is as the name implies photos that are taken
under water. This is pretty interesting since early cameras could not
function if wet. But as people started discovering the wonders under the
sea, they wanted to be able to share that with others or even just to
prove what they actually saw.

More on Wedding Photographer Malaysia. Next to consider, are your
technical aspects of your photograph. You are going to want to have
excellent composition, lighting, focus, contrast, exposure, perspective and
more. Another digital photography beauty is the ability to shoot your
people or events and view them ON THE SPOT! This can be done either
through your digital camera¡¯s viewfinder or by loading onto your
computer. When you are shooting special events in your life this is a real

Look at all they have to offer and make your decision after weighing what
you think is the best deal for the money in terms of what you actually
About the Author
More on Malaysia Photographer.

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