For task 1 b I was asked to explore shutter speed, aperture
and ISO and how they work together in order to create a photograph which is
correctly exposed. Through this research I found that each of these elements
are equally important as they all control the light which is let into the
camera through the lens. Through doing this research I learnt that if you
change one of these elements, the others have to be changed in order to take
photographs which have the perfect lighting. For example, if you were to change
the shutter speed to a longer exposure of about a second, you would have to
change the aperture and ISO if possible
in order to accommodate for this as the change to the shutter speed would let
more light into the camera so the ISO and aperture would have to set so that
they would let less light into the camera to balance it out or the photographs
would come out over exposed or underexposed if not correctly balance.
In order to carry out this research, I went out and took
some photographs exploring the effect changing the shutter speed, ISO, and
aperture has. Here are all of the
photographs I took whilst carrying out this research.
This is one of the first photographs I took whilst carrying
out this research. This is a photograph
of Nicole walking down the stairs in college. For this photograph I set the
camera to have an ISO of 100, a shutter speed of 1/30 and an aperture of f/8. For this image I wanted to capture Nicole’s
movements as she walked down the stairs to create a ghostly effect however,
this was not achieved with this image as, upon evaluating, I realise that the
shutter speed was a little too fast to capture this movement so the movement
within this image is frozen rather than captured in the way I had originally
intended. In addition to this, this photograph became a little under exposed
making the image appear dark. This
happened because the setting I was in was not lit in the best way so there was
not enough light entering the camera. If I was to reshoot this image I would
change the shutter speed so that the shutter was open for longer. This would
solve both of the issues with this photograph as the movement would be captured
in the way I want and more light would be let in through the lens meaning the
photograph would appear brighter.
This is another of the photographs I took whilst carrying
out this practical research. This is a photograph of Alice’s feet as she walked
towards the camera. For this photograph, I changed the settings slightly from
the last one by changing the shutter speed to 2 seconds and I also changes the
ISO to 400. These two changes made the camera more sensitive to light making
the photograph brighter and they also made it so the movement of Alice’s legs
is blurred in a ghostly fashion as I had intended to do with the photograph of
Nicole walking down the stairs. This said, I feel that this photograph is a bit
bright and over exposed, if I was to reshoot this, I would look at changing the
ISO back down to 100 in order to make the camera less sensitive to the light.
This would hopefully tone down the brightness of the image while still being
properly lit.
Once I had captured some images inside the college, I then
went out to City Park to capture some images there as I felt that there would
be more movement to capture if I was to go out and about. This is a photograph of a group of people
walking through City Park. To take this photograph I have the camera set with a
shutter speed of 1 second, an aperture of f/16 and the ISO was set to 100. This
meant that movement was captured as the people were walking and the photograph
is lit quite well. The movement within this photograph is shown by the way the
people in the photograph are blurred. To take this photograph, in set the
camera up on a wall so that the image would be stable and I would avoid any
camera shake. This means that while the people who are moving is blurred, the
background is in focus emphasising the movement within this photograph.
This is another photograph I took while out by City Park. To
capture this photograph I used a shutter speed of 1 second along with an ISO of
100 and an aperture of f8. These setting ensured that the lighting within this
image is balanced well and that movement was captured through the use of long
shutter speeds. For this image I did not have the camera set up on a steady
surface such as a wall or tripod, but instead the camera was handheld as I was
attempting to use the panning technique and follow the car with the camera
meaning that the background would be blurred with the car in focus. This effect
would have captured the movement but in reverse, it would make it appear that
the background was moving while the car stayed stationary when in reality, it
was the other way around. This
photograph did not work out the way I intended it to though as I was not
accurate enough with the panning to carry out this technique effectively
meaning that both the car and the background have been blurred.
This is a photograph I captured while in City Park of Nicole
jumping from a bench. For this photograph I used a fast shutter speed of 1/125
an aperture of f/11 and an ISO OF 800. In this image I aimed to freeze the
movement rather than capture it as a blur across the image. In order to freeze
the movement this meant that I had to increase the shutter speed. Increasing the shutter speed reduced the
amount of light which is let into the camera through the lens as the shutter is
open for a much shorter period of time, this means that this ISO and aperture
had to be changed accordingly so I changed the ISO to 800 in order to let more
light into the camera, I then adjusted the aperture accordingly to balance out
the light levels in the image. I am happy with the way this photograph turned
out as I like the way the movement is frozen and Nicole has been captured as
she is in mid air. In addition to this, I am happy with the way the photograph
is lit as the colours within the image are nice and vibrant and the photograph
is not overexposed and it is not underexposed.
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