Many modern digital cameras come in different modes.
But unlike a DSLR camera, which gives the user full control, such cameras have semi-auto or semi-manual mode instead.
The goal is to allow users to choose one setting at a time and let the camera make the rest of the decisions.
But how do you know whether to adjust the aperture or shutter setting? Usually, the camera will allow the user to adjust either the aperture or the shutter setting but not both.
The camera will automatically adjust the other setting.
For instance, if you adjust the aperture of the camera, the device will automatically adjust the shutter speed according to the conditions.
That's why such modes are known as semi-auto modes.
Understand that the main impact that the aperture has on the photo is the depth of field.
If you choose a wider aperture, you will have a smaller field of focus.
If you opt for a smaller aperture, you will get a wider field of focus - i.
e.
having both background and foreground in sharp focus.
Generally, the shutter speed will be slower if you select a smaller aperture.
The shutter setting comes into play when you want to shoot moving objects.
If your intention is to capture a very fast moving object like a racing car, you will choose a very fast shutter speed.
The object will be in focus and appear to freeze in the photo.
But if you want to capture a sense of motion, you can select a slower shutter speed and you will get a slight degree of motion blur.