Aperture is the amount of light let into the camera using the hole at the back of the lens and making it wider or smaller.

We use the f[stops] to measure it. The higher the aperture equals the more in focus and the smaller the hole. Depth of field is what’s in focus in front and behind the subject. the lower the depth of field the higher the aperture and less s in focus. The higher the depth of field the smaller the aperture and more is in focus .

Shutter Speed: 1/180

Aperture: 2.8

IOS Setting: 800

Shutter speed 1/125

Aperture: 4.5

IOS Settings: 400

Shutter speed: 1/125

Aperture: 11

ISO setting: 400

Depth of field

Depth Of Field is the distance between the foreground object and background furthest object or infinity (eg: the horizon) which are “acceptably sharp”. Since our cameras cant fully focus on two objects at once we use “acceptable sharpness” however this measurement varies as it depends on an individuals eyesight as well as how large the screen or print the photo is displayed on is. Sensor size of the camera also effects depth of field and therefore what is considered “acceptably sharp”. Typically cameras with a larger depths of field have smaller sensors.

To create a shallower depth of field you can move closer to the subject or open up aperture by lowering f stop number and therefore letting more light in. The opposite is used to create a greater depth of field so you can either move away from your subject or close down the aperture by using a higher f stop number and allowing less light in.