Photography By morgan burman

ISO

ISO is a cameras sensitivity to light, which gets its name from 'The International Standards Organisation), a industry scale for measuring the cameras sensitivity to light. ISO often has a large range on most lenses, with the lowest setting making the image quite dark but no grainy, whereas the highest setting will be quite bright but also very grainy. ISO can be helpful if the location your in is quite dark but graininess can often ruin a photo. Here are some examples of how ISO can change a photo:

4 examples of ISO being explored in photos

Aperture

Aperture is the name of the hole that light passes through to hit the sensor. Different lenses have the ability to change this, with larger holes allowing more light to hit the sensor but a shallower depth of field. This ability to control depth of field is helpful as it can draw attention to certain parts of an image, but this also equates to a lighter image, and so the ISO should be reduced. Alternatively, a larger depth of field will equate to a smaller hole and a darker image, and so a larger ISO is required.

An example of a shallow depth of field

Shutter Speed

Shutter speed is the speed in which the shutter in front of the sensor opens and closes. This is used to either capture an event that is quite quick (e.g. sports) or to effectively manipulate motion blur. These an give very different effects, as shown below:

Here are 2 examples of manipulating shutter speed

Exposure

Exposure is the term for light hitting the film or the sensor, determined by shutter speed, aperture and ISO. The term would be used in a sentence like so: " A good photo needs to be of the correct exposure".

Exposure being utilised in Photography

Composition

Composition is the use of framing and other effects in photography. These can include symmetry and framing (using the on screen grid) and other techniques to make your image look more aesthetically pleasing.

Lighting

Lighting is controlling the brightness of a subject without changing the settings on the camera using artificial light. Here are examples of controlling lighting with the subject being an egg:

Homework

We had to show our use of composition to use our environment to spell our name. Here is my submission...

Homework 2

We were tasked with gathering 10 pictures on a topic. I picked the topic 'Pattern and Texture' and tried to change depth of field and shutter speed, although only a few worked (I was quite close to the subject).

10 Photos based around Pattern and Texture

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