Monday 26 September 2016

Aperture, ISO and Shutter Speed

As part of the lesson, today we explored different camera techniques to achieve different outcomes. For example, the shutter speed on a camera is used to control the amount of time in which the camera lens is exposed to light. However, modifying the speed of the shutter speed directly affects the motion blur of the final image; a faster shutter speed will result in a more stable film/image, whilst a slower shutter speed will result in more motion blur being present. Today I experimented with shutter speed, aperture and ISO.

The aperture is responsible for exactly how much light enters the camera lens. Altering the F-Stop will impact on the depth of field of the final image/film. A lower F-Stop will allow more light to enter the camera lens, which results in a more shallow depth of field; whereas, a higher F-Stop will allow less light to enter the camera lens, which results in a wider depth of field.

ISO measures the sensitivity of a film, to lighting. Altering the ISO will impact the lighting of the final image/film. Having the ISO set to a lower value (i.e. 100) ensures that the grain is kept to a minimal, thus resulting in a higher quality for the final product. Increasing the ISO to a larger number (i.e. 1500) enables the user to capture more lighting within their production, however, sacrifices the quality of the image to do so as higher grain will be evident.

Image result for exposure triangle

A short video that displays my experimentation with different camera techniques can be found embedded below...



Taking part in this activity allowed me to develop my camera techniques; I am now confident that I am able to sacrifice one of these three features (ISO, Shutter speed or Aperture) and still be able to achieve adequate


No comments:

Post a Comment