UNIT 57 PHOTOGRAPHY- Texture/colour/shape

Using Texture, Colour and Shape are basic ways to enhance a photograph

Texture

• Everything has a surface so everything has a texture
• Some are course, some are fine
• Texture can be seen by looking at something carefully
• Taking pictures of textures can produce fascinating pictures
• Texture can also be added within photoshop. This will be done using texturizers

Colour

• One of the easiest ways to add impact to a picture is to improve use of colour
• Saturation is one way to play with colour as is contrast
• The three primary colours- red, blue and green- are very powerful and add energy and impact to an image
• Red is the strongest and can dominate an image
• For best results with colour, shoot in strong, bright light

Shape

• Helps with composition
• Shapes can be real or made up
• A roof might be triangular
• Use shapes in area you are in

UNIT 57 PHOTOGRAPHY- Introduction to Aperture

What is Aperture?

• The size of the opening in the lens when the picture is taken
• When you hit the shutter release button of your camera a hole opens that allows the cameras image censor to catch a glimpse of the scene you're wanting to capture
• The aperture that you set impacts the size of that whole. The larger the hole, the more light that gets in and vice versa with a smaller hole
• The word Aperture simply means "An opening"
• In the case of photography the aperture is created by an adjustable iris that can be opened or closed to control how much light enters the camera
• The iris is made of a series of thin metal blades that move together to roughly create a circular opening

How is aperture measured?

• Aperture is measured in f-stops
• They are referred to as n f/number for example f/2.8, f/4, f/5.6, f/8, f/22 etc
• Moving from one f-stop to the next doubles or halves the size of the amount of opening in the lens and the amount of light getting through
• Large apertures where lots of light gets through have smaller f numbers
• Small apertures when little light gets through have bigger f numbers

Depth of field and aperture

• Depth of Field (DOF)- The amount of shot that will be in focus
• Large DOF- Means that most the image will be in focus whether it's close to the camera or far away
• Small DOF- means that only part of the image is in focus and the rest is fuzzy
• Aperture has a big impact on depth of field. Large aperture will decrease the depth of field, small aperture will give you larger depth of field.
• Small numbers= Small DOF
• Large numbers= Large DOF

Some styles of photography require large depths of field (and small aperture)

• Most landscape photography will have small aperture settings (large numbers) 
• This ensures that from the foreground to the horizon is relatively in focus
• On the other hand in portrait photography it can be very handy to have your subject perfectly in focus but the background blurred to ensure the subject is the main focal point and that other elements are not distracting
• Macros photography tend to use larger apertures to ensure that the element of their subject that they are focusing on totally captures the attention of the viewer of their images while the rest of the image is thrown out of focus.

Large Aperture

• Large apertures produce shallow depth of field- f2.8 and f5.6 will do this
• Basically this means the area of sharp focus in the picture will be small
• This can be useful when you want to isolate the subject matter of your picture while throwing the background and other distracting elements out of focus
• Wide apertures are good for portraits and close ups

Small Apertures

• f16 to f32 increase the depth of field meaning more elements of a picture from the foreground to the background become sharply focused
• This can create a distinct sense of depth to a photograph. Small apertures are a must for most landscape photographs

Unit 51 Magazines and Double Page Spreads- My Page Layout