Camera Settings

Main aperture settings: 2.8, 4, 5.6, 8, 11, 16, 22, 32, 64.

The lower the aperture setting, the more light this lets into the image.

Main seconds: 30", 15", 8", 4", 2", 1", 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, 1/2000

The relationship between aperture and shutter speed involves lighting. The lower the aperture, the more light you let into the lens meaning that you need to make the shutter speed quicker, in order to capture the image without it being overexposed. Contrastingly, the higher the aperture the less light you're allowing into the lens, meaning that the shutter speed must be longer in order to allow more time for light to make its way into the lens. 

If you obtain a low F stop number, then the depth of field will be shallow, with background blur; whereas contrastingly if you have a high F stop number you'll obtain a wide depth of field, with less blur. 

The ISO of as camera is important as it's dependant on the light, if it's dark you'd use a higher ISO although this can make the image slightly grainy. 

A large aperture means a low f stop, which results in a narrow depth of field, whereas a small aperture means a higher f stop and a wide depth of field.