camera ever made, from the first wooden box camera
to today’s compact and efficient digital
cameras, works exactly the same way. At this point
you’re probably thinking that I’ve
lost my marbles - there’s no way that a
19th-century hunk of wood does the same thing
that your sleek, 21st-century technological marvel
there are amazing and obvious differences, the
heart of the camera and fundamental principles
that enable a camera to take a picture haven’t
changed in more than 100 years.
World's first photograph
Joseph Nicéphore Niépce.
View from the Window at Le Gras. ca1826.
concepts of shutter speed, aperture, and more,
recently, white balance have remained exactly
the same since the
dawn of photography, and they are essential to
understand if you want to take good pictures.
(They’re even more important to understand
if you’d like to take great ones.) They’re
all connected, so it is also vital to understand
how they relate to each other.
the most basic level, a camera is a lightproof
box with a covered hole in it. When it comes time
to take a picture, the hole’s cover needs
to move away from the opening for a moment to
let light strike a digital sensor (or film, if
you’re using a film camera). Inside most
cameras is a small shutter, which works very much
like a set of Venetian blinds you might hang over
a window. That shutter hangs over the hole like
a drape. When you press the shutter release button
to take a photo, the shutter moves aside and lets
light hit the digital sensor, and then snaps quickly
back into place. Since the sensor in your camera
is very sensitive to light, that hole only needs
to be uncovered for a fraction of a second in
order to let enough light in to make a picture.
in too much light, and the photo will be washed
out and there will be no detail - lines on people’s
faces, letters and numbers on signs, and other
fine objects will become blurs. Let in too little
light, and your picture will be too dark to see.
Photographers call any picture where the shutter
has been open too long overexposed and any picture
where the shutter hasn't been open long enough
the history of digital photography is not very
long, digital photography has already transformed
how people take and view photos.
digital photography, most photos had been viewed
as prints. Today, however, the majority of photos
are edited and viewed on computers. Digital photography
allows a photographer to develop his own film
by using digital printing.
history of digital cameras began as early as the
1980s, when digital photography replaced traditional
film in astronomy. Digital cameras capture light
better than film plates.
photography remained the privilege
of the photojournalism world until
1994 and the introduction of the Apple
Quicktake. The Apple Quicktake 100
looked like a pair of binoculars,
weighed a full pound, and was capable
of storing a whopping eight photos
at 640x480 resolution or 32 photos
at 320x240 resolution. Still, the
camera was revolutionary. It was the
first that could connect to a home
PC by a serial cable. The cost? Around
their introduction, commercial digital cameras
have largely replaced manual cameras, as photographers
can more easily upload, edit and email their pictures.
photography printing allows photographers to create
high quality prints in their own homes. As the
history of digital photography progresses, expect
to see even more options and features added to
you can get a decent digital camera for less than
$500 with many different features and options.