2. Aperture
Aperture is an open
that can be adjusted
in an optical
instrument just like a
camera. It limits the
amount of light that
passes through the
lens. It is often
expressed by the F
number.
In photography the
aperture is the
amount of
measurement that
defines the size of
the opening in the
lens.
3. F/8 This picture has
the middle highest
ISO number
meaning that the
picture will be a bit
more noisy. Also we
can see that this
picture has balanced
the light quite
equally which
therefor has given us
that the aperture is
at a medium state.
F/29 compared to
the other two
pictures this
pictures more
focused and more
light. The detail is
more obvious and
easier too see
which is down to
the size of the
aperture which will
be the smallest
aperture because
this pictures quite
dark.
F/4.5 If we look at
the picture we can
see that there's
more light being let
in which make it
less visible to look
at. Here the
aperture would be
bigger which allows
more light to pass
through however
we can see that due
to this picture
having a low ISO its
been slower to light.
4. Shutter Speed
• In photography the shutter speed is
the unit of measurement which
usually determined how long the
shutter remains open. This is
usually processed as the picture is
being taken. The slower the shutter
speed then the longer the exposer
time. The aperture along with the
shutter speed control the total
amount of light reaching the sensor.
The shutter speeds are usually
shown in seconds or fractions e.g.
2, 1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60,
1/125, 1/250, 1/500, 1/1000, 1/2000
, 1/4000, 1/8000
5. ISO
• ISO stands for
international organisation
of Standardisation. It is
also the measurement of
how sensitive a digital
camera’s sensor is to light.
The speed of light is rated
in ISO numbers, the lower
the number the slower the
response to light. Many
cameras with ISO settings
allows you to take pictures
in a low light. However the
higher the ISO the more
noisy the pictures will be
and might look like your
pictures covered in sand.
