Monday, 16 October 2017

Composition & Camera Settings

COMPOSITION

composition is the placement or arrangement of visual elements or ingredients in a work of art, as distinct from the subject.

The term composition means 'putting together' and can apply to any work of art, from music to writing to photography, that is arranged using conscious thought.


Rule of thirds

The rule of thirds is a composition guide that is to do with the arrangement of important features of an image, that is on or near the lines that would divide the image into thirds vertically and horizontally to make it visually pleasing. It is with the aim to stop the subjects and areas of interests from bisecting the image. This can be done by placing these specific features near to one of the dividing lines,usually near the intersection of the lines.



Triangular Composition 

Triangular composition is a classical way of composing an image, in which you centre your main points of your image between an equalatireal or isosceles triangle.When an individual views a photograph, our eyes typically travel viewing an image from left to right. When professional photographers produce an image, they keep this in mind and use triangulate composition to draw our attention to a specific area of focus within a triangle.







Negative Space

This is the technique of using low impact elements to contrast the main subject in a photograph. This is a visual effect that isn't always a plain colour, it is a contrast to the high impact nature of the subject which can range from low textures, subtle gradients as well as flat colours. It creates an element of space in an image, as we would see things in real life, giving a balance between high and low impact in the image, which emphasises a specific subject and can be viewed as aesthetically pleasing





CAMERA SETTINGS


















ISO - International Organisation of Standardisation


The letters ISO on s digital camera settings refer to the sensitivity of the sensor to light.
Low ISO values for example 100, mean low light sensitivity and high image quality, whereas High ISO value means a high light sensitivity and lower image quality. An ISO value of 100 or 200 is suited to photographing in sunny conditions, and an ISO value of 400 or 800 is suited to photographing in cloudy conditions or at dusk/dawn. An ISO value of 1600 or higher is suited to low light conditions, like darkened rooms, or taking images at night.
As ISO values increases it doubles in number usually starting at 100, 200, 400, 800, 1600 and so on.



This image above shows the difference in image quality, left ISO 100, and right ISO 3200.

Aperture


The aperture adjusts the size of the opening through which light passes to the image sensor.
The aperture can be opened up to let in more light or closed (stopped down) to let in less. In respect to just exposure, smaller apertures let less light strike the image sensor so the image is darker. Larger apertures let in more so it's lighter.

To attain the right exposure for a given aperture setting the shutter speed also needs to be adjusted.
Aperture can change the images depth of field, the higher the aperture the wider the depth of field and the lower the aperture the more narrow the depth of field.

Narrow Depth Of Field


Wide Depth of field



Shutter Speed

Shutter speed means timing and duration of opening and closing of the shutter curtain at the back of the camera. A fast shutter speed will freeze the action while slower speed creates a blurring effect.


Capturing motion (freeze frame)


Capturing motion (Panning)



All three of these camera settings depend on one another and to achieve a great quality image, one will need to change as one increases or decreases. This picture below shows a clear guide on what the best ISO's are for particular shutter speeds and apertures.











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