Photography is derived from the Greek words
phtos- for “light” and
–graphos for
“drawing”. According to Wikipedia, “Photography is the art, science,
and practice of creating durable images by recording light or other
electromagnetic radiation, either chemically by means of a light
sensitive material such as photographic film, or electronically by means
an image-sensor”.
There are many important aspects of Photography like, Exposure,
aperture, flash, focus, ISO, lens, depth of field, white balance,
shutter speed, metering and post processing. If all of these are in
correct combination, it results in a beautiful photograph. Photographers
practice for all these above aspects of photography. But it is not a
day’s job to master all these terms. So we will start in this article by
knowing about the importance of “Exposure”.
Exposure signifies the amount of light recorded on the film or sensor
depending on the camera. If the shot is taken in broad daylight and
there is too much light hitting on a very high ISO sensor for long, you
will end up with a glaring, overly bright and an unrealistic image.
While on the contrary, short shutter speed with a small aperture at low
ISO has the capability of making a daylight scene look very dark as if
shot in the evening. So, right amount of exposure is very necessary
while capturing the images.
To get the correct exposure you need to try various permutations and
combinations of balancing the shutter speed, ISO and aperture. This is
the key to great photography. I will be explaining all these above terms
in coming articles.
Well like everything, there is any easy way to adjust the to take
care of adjusting exposure settings. It is called bracketing. To bracket
a photo manually, you need to set your shutter speed, aperture and ISO
to where you think the proper exposure is, then take the photo. Then,
adjust the aperture or shutter speed to reduce the exposure slightly and
take that photo. Then adjust the exposure so it is slightly more than
the first photo and take that one. This series of three photos
“brackets” what is, hopefully, the proper exposure. Try to hit the sweet
spot between the three to capture the perfect image.
Source:
http://www.altubina.com/article/importance-of-exposure-in-photography.jsp
