For photographers, though, what is more important is the shutter speed.
Every time you press the shutter button, a door that opens and closes is found in front of your camera’s sensor.
In the simplest of terms, exposure for photographers refers to how an image is recorded by camera sensor and how much light is captured.
Basically, it determines what the image you capture will look like.
ISO, Aperture and Shutter are known as the “exposure triangle”.
If you know how to control or adjust these elements, taking well exposed photos will not be a problem for you.If the ISO is related to light sensitivity, the aperture is all about controlling the amount of light that gets to the digital sensor of your camera.The aperture is the opening found in your camera lens.This is the shutter mechanism that determines the light reaches your sensor.The shutter speed is measured in fractions of a second, e.g. So, if you use the example given, 1/100s, what this means is that your camera sensor is exposed to light for only one hundredth of a second.For shallow depth of field photos, use a larger aperture size (i.e. So, if you need to remember one thing, it is this: when you adjust the aperture by just one stop, you either halve or double the amount of light that goes through your camera lens.What is important, though, is that you keep practicing until you familiarize yourself with the different f-stop values, and until you produce the image/s you want.For example, if you want more saturation and less noise and more details, go for ISO 100.If you want less saturation and details, go for a higher number, like an ISO of 400.If you increase the f-stop to decrease the amount of light getting to the sensor, you will also need to adjust the shutter speed and the ISO for an equivalent exposure; otherwise, your image might come out blurry or too bright; overexposed or underexposed.This is just a simple introduction to the three elements that make up the exposure triangle.