Ok lah i talk talk talk all the camera lingo..
can make ppl blur one. Maybe u read the following b4 going back to
PAGE 1 to properly read the setting ideas...
Camera Term Origins : Film Camera
This one will be about the character called Film
Camera. i will BOLD camera terms so that you cna catch
them while seeing the article.
In the late 18xxs, people were beginning to discover that when
you expose light to some paper laced with a
certain chemcial X (this dumb guy dunno what they use actually, so
feel free to fill this in for me). , ah hem,
expose light to paper laced with certain
chemicals, you get some marks and images to initate the process it
was found that a flash of light was needed to
agitate the paper with chemicals.
A further process was needed to develop out the
pciture from the film.
this seemed a cool way to capture what you are looking at.
the process is later called takking a photograph. the laced
chemicals paper came to be called film.
So it was then they built the first camera.
Chuck the film into the back behind a hole called
aperature . build a flash bulb
above the hole and voila the thing that cna capture images that u
want.
naturally as it progressed, people found that sometimes their
pictures came out all white or
overexposed. or when have too little light,
the pictures when developed were just kinda
dark.
So they thought, how about we make the hole bigger and smaller ,
and thus aperature could be adjusted to let in the
right amount of light they wanted. But still it was not enough and
pixs were still not good...Ok so we control the hole size, what are
we missing here... ah time. i wish to contol the amount of
time light strikes my film..
So to solve this they invented the shutter to
control the amount of light based on time( lest you get those
bright overexposed pictures again. So it was that shutter
measurements came about in times particualrly in small amounts of
time like seconds, eg : 1/5 seconds shutter. meaning based on the
light conditions we control that only 1/5 seconds of time, light
falls on the film.
And so as picture taking progressed and and more and more
sensitive film was developed for better
pixsand i a not sure if sensivitivty cna be
adjusted on todays film cameras then came
the digital camera
The digital camera basic set up followed closely to its
forefathers the film camera. In replacement of film was a light
senstive electronic film called the CCD. ...With
digital technology, the "film" could be made more sensitive
or less sensitive to light bby use of electornics. Thus
came the ISO settings on digital cameras.
conclusion
with the understanding of how the good OLD camera works, u will
understand how todays modern digi cam works
ZYX
