Most cameras come with a few different types of shooting modes, from full automatic to full manual. We're going to take a look at the most common and discuss when you should use them. You may not be familiar with terms like shutter speed, aperture, and ISO but don't worry—we'll be going over those in detail in the next lesson.
Automatic takes care of everything for you. There's not much to explain here
Program automatic sets your aperture and shutter speed automatically, but gives you control over other settings like ISO (the rating that affects how sensitive your camera's sensor is to light—similar to film speed in film cameras).
Scene modes generally have icons to represent their purpose, such as a mountain for landscapes or a fast-moving person for sports. Scene modes can be useful if you want the camera to assist you in photographing the types of photo search mode is designed for, but hopefully after you're done with these lessons you won't need or want to use them anymore.
Shutter priority allows you to set the shutter speed and ISO but allows the camera to set the aperture automatically.This mode is useful if the shutter speed is the most important consideration when taking a photo. This is often the case when you want to make sure you take a photo fast enough to capture motion but do not care about the aperture. This is useful for photography sports, dance, or anything with a lot of movement.
Aperture priority allows you to set the aperture and ISO but lets the camera set the shutter speed automatically. This is useful when the aperture is the most important consideration in your photograph. The aperture can have some of the greatest visual impact on your photographs because it is one of the largest contributing factors to depth of field. A wide aperture (represented by a low f-stop like f/1.8) will produce a photo where your subject is in sharp focus but the background is very much out of focus. This is useful for portraits, or focusing on a single object in an otherwise busy frame. A narrow aperture (represented by a higher f-stop, like f/8) will produce a photo where most everything appears to be in focus. This is useful for landscapes, or any other situation where keeping everything in focus is desirable. Wider apertures also let in more light, so they're useful when you don't have much and want to avoid using a flash. Aperture priority is one of the best shooting modes your camera has because you can still control your ISO settings (light sensitivity) and the shutter speed is often something that's best left for the camera to decide unless you have a reason to choose it yourself. Don't worry if you don't fully understand this yet. We'll be discussing aperture, shutter speed, and ISO in much more detail in the next lesson
Manual mode lets you set everything, and we'll be discussing this mode in detail in the next lesson. It's worth noting,however, that this mode does not imply manual focus with DSLR cameras. Switching between manual and automatic focus is generally a dedicate hardware toggle switch on your lens and not on the camera. If you want to focus manually on a DSLR, you can use any shooting mode you want if the switch is set to manual on the lens.
Nikon (2019) DSLR Camera Basics. Retrieved from https://imaging.nikon.com/lineup/dslr/basics/01/01.htm