ISO - ISO is how sensitive the camera is to light. usually, the numbering system is 100, 200, 400, 800, 1600, and 3200. These numbers multiply by 2 every time. For bright situations, you should use 100-200. Cloudy days 400,800, sometimes 1600. If you want to shoot dark situations, 1600-3200 will usually work. You can think of ISO like sunglasses. The more light, the less sensitive you want the camera to be. The less light, the more you want it to be sensitive, so you take off the sunglasses.
Aperture - Aperture is how much light is let in to the camera. Aperture is measured in f-stops. These usually look like numbers with decimals, such as f 5.6. For Aperture, the lower the number, the darker the situation should be. For higher numbers, you want it to be light, to let more light into the photograph. One of the hidden functions of aperture is focus. If you have a lower number, the focus range gets closer to you. You can use this to have a blurred background or a boca effect. This can go the other way around as well. With the higher numbers, your range increases by so much that your focus range is almost infinite.
Shutter Speed - Shutter speed is how long the camera is open. Usually this is measured in fractions, such as 1/160, or 1/1000. These fractions represent how long the shutter speed is open. So 1/160 of a second, or 1/1000 of a second. These also can go into full seconds. Full seconds can be used to create an effect of motion, such as people walking past, or playing with light. But, as these shutter speeds get longer, more light will be let in. with the smaller numbers, less light will be allowed through, so it may make the photo darker.
Aperture - Aperture is how much light is let in to the camera. Aperture is measured in f-stops. These usually look like numbers with decimals, such as f 5.6. For Aperture, the lower the number, the darker the situation should be. For higher numbers, you want it to be light, to let more light into the photograph. One of the hidden functions of aperture is focus. If you have a lower number, the focus range gets closer to you. You can use this to have a blurred background or a boca effect. This can go the other way around as well. With the higher numbers, your range increases by so much that your focus range is almost infinite.
Shutter Speed - Shutter speed is how long the camera is open. Usually this is measured in fractions, such as 1/160, or 1/1000. These fractions represent how long the shutter speed is open. So 1/160 of a second, or 1/1000 of a second. These also can go into full seconds. Full seconds can be used to create an effect of motion, such as people walking past, or playing with light. But, as these shutter speeds get longer, more light will be let in. with the smaller numbers, less light will be allowed through, so it may make the photo darker.