Photos that interest me

Around Wem

Around School and Sixth Form

Aperture

For this exercise we were told to go out and take photographs of anything, but we had to change the aperture on each of them.

The aperture is the hole created in the lens, which allows the passage of light. This is also known as the f number. The lower the f number the bigger the light hole is and the higher the f number the small the light hole will be. Changing the aperture can have several interesting effects on the photograph. The wider the aperture (lower number) means that you can take photography’s in slightly darker lighting conditions. It also has the effect of creating a shallow dept of field where only the many subject is in focus and the foreground and background are blurred on purpose, this effect is known as bokeh where when using a small aperture there needs to be more light to be able to take the photograph. But all off this photograph will be in focus. If you increase the aperture the decrease the shutter speed.

F16


F13


F9


F4

Shutter Speed

For this exercise we were told to go out and take 4 photo and we were to alter the shutter speed, one of them had to be a high shutter speed, another had to be a low shutter speed and the rest had to be some were in the middle.

In photography, shutter speed is the length of time the shutter remains open. With subjects such as sport or motor sport, fast shutter speed are needed to freeze the action. Whereas landscape photography’s can be taken with much slower shutter speeds. A useful rule when taken hand held photography’s is that the shutter speed should relate to the focal length of the lenses to avoid camera shake, e.g. using a 50mm lens us can used shutter speeds as slow as 1/50^th of a second , but using a 400mm lenses u will need to use a shutter speed of 1/400^th of a second. This is a useful general rule.