Camera and lighting techniques 2 (Exposure Triangle Practical)

 Camera and lighting techniques 2

Exposure Triangle Practical Work

 Shutter Speed

As a rule of thumb, you want the denominator of your shutter speed to be approximately double the number of frames per second that you are recording. In other words, if you are recording at 24 or 25 frames per second, you want your shutter speed to be 1/50th of a second.

The first clip has a higher frame rate which makes the image more vivid and more motion is captured then the second clip.

Aperture

Aperture affects the depth of field and is the light that gets let into the lens.

A wide aperture makes the background blurred while a smaller aperture makes the background more in focus.

For establishing shots you'd use a narrow lens for a wide depth of field.

In the first shot, there is a smaller aperture compared to the second shot as the subject and the background is in focus, whereas in the second shot there is a wider aperture so the background is blurred while the subject is in focus.

ISO

ISO is what controls the brightness and darkness of a shot. The Higher the ISO number, the brighter the image will be, the lower the ISO number the darker the image will be. However, raising the Iso too high causes grain and noise in the image and should only be done if you cannot raise the brightness through the aperture and shutter speed.

The first shot has a higher ISO of 1600 while the second shot has a lower ISO of 200 making it a lot darker to the first shot.