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Digital camera auto exposure and auto focus
By Jakob Jelling
Snapjunky.com
The digital camera being a fantastic and technologically
advanced device contains many different applications of its own.
Many users of this fabulous device are unaware of quite a few of
these functions which can actually do wonders. And it is the
duty and right of every person possessing the digital camera to
intervene into the depths of knowledge to understand their
prized possession and their varying qualities in order to foster
the true respect that this device deserves. This article deals
with providing information regarding one those qualities - Auto
focus and auto exposure!Exploring the information in slight
more details it can be stated that auto exposure cameras are
provided with a fixed focus lens or manual focus lens. These
cameras are the simplest to set exposure. To obtain the correct
exposure for a particular subject of photography, the only thing
that needs to be done is to simply lock the exposure by pressing
the shutter down halfway on the digital cameras upon a reference
object that is about one fifth gray and also illuminated by the
aid of the same source of light as subject of photography. After
locking the exposure, the photographer has to recompose the
frame and shoot the picture. Auto exposure and auto focus
cameras are to some degree harder for setting the exposure,
because they contain the exposure lock that is generally tied to
focus-lock. However, the users or photographers using these auto
exposure and auto focus cameras can still make adjustments for
the correct exposure and correct focus using the digital cameras
and make the photographs perfect! Again, the exposure can be
adjusted by locking on an 18% reference that is illuminated by
the aid of the same source of light as subject of photography.
The users have to only ensure that the distance to this
so-called reference is the same as the distance to the subject
of photography that actually sets the focus.
Now discussing the auto focus and auto exposure lock (AE/AF)
a bit more in detail. The shutter release button on a digital
camera has more function than just snap a cool picture. The
users have to grab a technique where he or she has to depress
this shutter release button half way down thereby locking both
the auto exposure and auto focus. This enables the users or
photographers to have more control on exposure in difficult
lighting situations while using the digital camera. Moreover,
this entire process also helps him or her to determine where the
camera focuses. Like if the photographer intends to set the
exposure before composing the final shot of the photograph then
he or she can move the digital camera slightly so that only the
subject to be photographed is visible prominently in the auto
focus frame in the viewfinder. As a next step he or she can
depress the shutter-release button down half way to set focus
and exposure and then recompose the picture and finally
completely depress the button in order to capture and freeze the
moment of time! It is to be noted here that the auto focus and
auto exposure lock (AE/AF) is available in all photography modes
of the digital cameras that are nowadays available for the
general people.
Not much remains to be discussed about this particular topic
of auto focus/auto exposure and a brief discussion as above is
enough to reveal a bounty of information regarding this
fantastic feature of the digital cameras. At the end of this
discussion it can be expected that both the novice and expert
photographers and user of the digital camera would benefit from
whatever has been revealed and the effort to bring out the human
mind from the dark oblivion about auto focus and auto exposure
lock would be a success in the magic light of the digital
camera!
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About the V I Imagery Website |
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At V I Imagery, our goal is to supply quality art,
photography, and digital imagery in a pleasant, informative, and
relaxing fashion. From the art, photos, and digital images
in our galleries, to the tips and tricks in our forum, we have
tried to design our site to be family oriented and user
friendly. If you experience problems with any image, link, tip,
trick, game, etc. or find that any of our pages contain, or lead
to pages that contain, any faulty or offensive information,
please let us know so that we can correct the issue and insure
that the V I Imagery website continues to strive towards it's
goals.
Thank You,
The V I Imagery llc.
Management Team |
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