- Shutter speed is responsible for whether the moving objects on a photo will be blurred or sharp. The higher the shutter speed (1/30, 1/125, 1/500 and so on), the less the effect of motion blur; high shutter speed, however, makes a photo darker. And on the contrary, the slower the shutter speed (1/20, 1/10, 1 seconds, and so on) the more blurry moving objects will be; a photo, however, will be lighter.
- Aperture is needed to blur the background. Open apertures (f/2.8, f/5.6) are good for making portraits, because they help you to take a clear and sharp shot of a model’s face, while the background will be blurry. Open aperture lets more light get onto the matrix. Closed apertures are good when taking pictures of nature or cityscape, or when you need both background and the foreground to be equally sharp.
- ISO is the sensitivity of a matrix. The higher the ISO value is, the lighter your photo will be; however, mind that high ISO values can negatively affect the overall quality of a photo, making it grainy and “noisy.”
Maintaining balance between these three parameters will help you take good photos.