Experimenting with narrow depth of field photography uses the aperture function of the DSLR which allows the photographer to adjust the shutter size allowing a select amount of light in every time the shutter opens and closes. This means that when changing aperture, the photographer has to remember to adjust the exposure time as well. In the topmost photograph of "fresh mint tea", I used a very low F number, opening the aperture of the camera to it's maximum at that particular zoom level, and despite the relatively low amount of ambient light due to a clouded sky I had to adjust the speed to reduce the time that the shutter was open, balancing out the amount of light let in by size of shutter opening and shutter speed. The low F number used in "Fresh Mint Tea" created a narrow depth of field effect, blurring out the background and increasing the contrast betwee background and subject, bringing the viewer's attention to the subject of the photograph - in this case a mint tea - and intending the background to be present simply as a atmospheric/mood tool emphasising the droplets of condensation and abstract green forms distorted by the curving nature of water in a glass. "Deep Field Wreck" was taken using a high F number which closes the aperture, creating a very small hole through which light can enter the camera as well as using a fast exposure time. The combined effect is that of a slightly darkened image, but the entire photograph is in focus from the droplets of water "hanging" in the air from the crashing waves to the further away wreck of the rusted Brighton Pier and even further to the buoy marking the safe distance from the wreck, beyond that the horizon and clouds are also still in focus. Using a high F number usually requires a longer shutter speed to allow for more light to enter the camera, however due to the higher light conditions of the day, I was able to use a higher shutter speed to keep the moving water from blurring while keeping the wide depth of field effect - keeping the fore, mid and background completely in focus. To contrast the "Deep Field Wreck" I included "Blinded". having used a High F number, I used a long exposure time to compensate for the small aperture. However the light conditions allowed too much light into the picture, over-exposing it and creating an effect I found aesthetically pleasing, and interesting. I included this image because it contrasts "Deep Field Wreck" in method and result as well as demonstrating the interesting use of burning a photograph with overexposure. "Blurry Girl" demonstrates an interesting effect through the use of a long exposure time and movement with the camera, creating a double exposure effect whilst retaining the lines of movement and creating abstract lines and curves in the photograph. The low F number allowed for a large amount of light to enter the camera compensating the low light conditions, while the long exposure time allowed for the blurriness effect and the abstract lines and colours blurring into each other. "Not Blurry Girl" uses the same aperture setting as "Blurry Girl" but uses a 60 times faster shutter speed and to compensate for the low light and faster speed which would let in even less light, underexposing the picture, flash was used. This creates a fully in focus picture, including the steam rising from the pot of cooking pasta. |
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