Photography Liam Smith

Exposure

What is exposure?

Exposure refers to how much light is taken in while taking a photograph. This is achieved and controlled by a balance between the IOS, Shutter speed and Aperture on the camera.

Shutter Speed

The shutter speed relates to how much time light has to get to the sensors. The longer the shutter speed the more time light has to hit the sensor and the more exposed the image will be. You would use a longer shutter speed in low light situations or if your trying to make a motion blur effect. Motion blur is how much movement is made while the shutters open. The more movement and longer shutter speed the more motion blur.

IOS

The IOS is the sensor in the camera. This is where all the light will hit. The higher the IOS the more sensitive it is to light. So in a low light situation the higher the IOS the brighter the image will look because its taking more light. The problem with have the IOS to high is it could get over exposed or cause noise on the image. Noise is a grain look which happens when there's to much light being taking in.

Aperture

The Aperture controls how much light gets through to the sensor. This can effect the depth of field. Depth of field is how much is in focus in the shot. So a wider depth of field will have more in focus which is better for landscape shots compared to blurring out the background and focusing on a specific part of the image.

Over exposure

Over exposure occurs when the shutter speed is to long, the aperture is to wide and letting in to much light and the IOS is to sensitive to light. This causes the image to be to bright and loses what your taking a photo of to the light.

An example of over exposure

Under exposure

Under exposure can occur if your shutter speed is to quick, the aperture isn't taking in enough light or the IOS isn't sensitive to the light. Under exposure is when the image doesn’t have enough light and is dark and very unclear. The only real thing you can see is the brightest parts of photograph because its trying to take in as much light as it can as fast as possible.

An Example of Under Exposure

Example

If your trying to take a photo graph of sports you will have to have a really fast shutter speed so nothing is caught with motion blur and take in as much light as possible because it wont have much time to take in light. So you would keep a wide aperture so you keep the focus on what your taking a photo of and take in lots of light. Also have a mid IOS to compensate how much light is coming in such a quick time. Also so you don’t get to noise.

Composition

Composition is the placement of whatever your taking a photo of in the shot and how the shot makes you focus on what your taking a picture of. I will be looking at 3 examples. The rule of thirds, leading shots and framing shots.

Rule of Thirds

The rule of thirds is a way of lining up you images so they look good and professional. The way it works is the frame or the shot is split into 3 sections across and down, anywhere the sections cross are fitting

Example of rule of thirds

Leading shots

Leading shots are when you take a photograph on something which draws your eyes to a main focus. For example if have a picture if a costal walk with a bar leading towards a shop. The shop would be the main focus and the bar would draw your eyes to that.

Example of leading shot

Framing shots

Framing shots are when you take a photo of something but have things sectioning out that main focus. For example if you take a photo of a sunset through a window, the window acts like a frame for the main focus which is the sun set.

Example of framing shot

Lighting

Egg lighting test examples

egg lighting test

'Name' Project

L = Chair, I = audio level, A = Plug socket, M = window

Easter Project

Theme is natural lighting and nature with the flowers (Pattern and texture)

Credits:

Created with images by JESHOOTS - "photo camera photography" • o_z_ge - "A'dam" • nike159 - "tennis ball tennis court" • Daniel E Bruce - "soldiers on my desk, no post processing aside from the framing"

Report Abuse

If you feel that this video content violates the Adobe Terms of Use, you may report this content by filling out this quick form.

To report a Copyright Violation, please follow Section 17 in the Terms of Use.