Camera Modes Explained: Auto, P, Av, Tv, M and More

Try It Yourself: Camera Simulator

Click Av, Tv, and P in the simulator to see how each mode locks and auto-calculates the other settings.

Every camera has a mode dial or menu that controls how much of the exposure process is automated. The main modes are Auto, Program (P), Aperture Priority (Av/A), Shutter Priority (Tv/S), and Manual (M). Check out our how to shoot in manual mode for more details. Understanding what each mode does, and when to use it, helps you take control of your photography without making things harder than they need to be.

Auto Mode

In Auto mode, the camera controls everything: aperture, shutter speed, ISO, white balance, focus mode, and usually the flash. You point and shoot, and the camera does its best to produce a properly exposed image.

Auto mode is useful when you need to hand your camera to someone unfamiliar with it, or when conditions are changing so fast that you cannot keep up. It is not a “bad” mode, but it gives you no creative control. The camera does not know whether you want a blurred background or a frozen action shot, so its choices are generic compromises.

When to use it: Quick snapshots, handing your camera to someone else, situations where speed matters more than creative control.

Program Mode (P)

Program mode is a step up from Auto. The camera still sets the aperture and shutter speed automatically, but you regain control over ISO, white balance, focus mode, and whether the flash fires. Many cameras also let you “shift” the program, cycling through equivalent exposure combinations (wider aperture with faster shutter, or smaller aperture with slower shutter) while keeping the overall exposure the same.

When to use it: Casual shooting where you want quick results but also want control over ISO and flash. It is a good stepping stone from Auto as you learn the relationship between settings.

Aperture Priority (Av / A)

In Aperture Priority mode, you choose the aperture and the camera automatically sets the shutter speed to achieve correct exposure. You also set the ISO (or use Auto ISO). This is arguably the most versatile mode in photography and the one many professionals keep their camera set to most of the time.

The reason Aperture Priority is so popular is that aperture directly controls depth of field, which is one of the most powerful creative tools available. Want a blurred background for a portrait? Set a wide aperture like f/2.8. Want everything sharp in a landscape? Set f/8 or f/11. The camera handles the shutter speed calculation, leaving you free to focus on composition and timing.

When to use it: Portraits, landscapes, street photography, travel, general-purpose shooting. Any time depth of field is your primary creative concern.

Shutter Priority (Tv / S)

Shutter Priority is the mirror of Aperture Priority. You choose the shutter speed and the camera sets the aperture. This mode is ideal when you need to control how motion appears in your image.

A fast shutter speed like 1/1000s freezes action, making it perfect for sports and wildlife. A slow shutter speed like 1/15s introduces intentional motion blur, which can convey speed and energy. Shutter Priority ensures your chosen speed stays constant regardless of changing light conditions.

One thing to watch for: if the scene is very bright and you select a slow shutter speed, the camera may not be able to stop down the aperture enough to prevent overexposure. Similarly, in dim light with a fast shutter, the camera may open the aperture to its maximum and still underexpose. Pay attention to any blinking warnings in your viewfinder.

When to use it: Sports, wildlife, birds in flight, panning shots, long exposures, anything where freezing or blurring motion is the priority.

Manual Mode (M)

In Manual mode, you control all three exposure settings: aperture, shutter speed, and ISO. The camera’s light meter still works, showing you whether your chosen combination will produce an underexposed, properly exposed, or overexposed image, but it will not override your choices.

Manual mode is essential in situations where the camera’s metering is likely to be fooled. Studio photography with controlled lighting, night photography, and scenes with extreme contrast (such as a backlit subject) all benefit from manual control. It is also the best mode for learning, because it forces you to understand the relationship between all three settings.

A common misconception is that “real photographers” only shoot in manual mode. In reality, experienced photographers choose the mode that gives them the most efficient control for the situation. Manual mode is one option, not a mark of expertise.

When to use it: Studio work, night photography, flash photography, panoramas (where consistent exposure across frames matters), video, and any situation with tricky or consistent lighting.

Bulb Mode (B)

Bulb mode is a variant of manual mode for exposures longer than your camera’s maximum shutter speed (usually 30 seconds). While in Bulb mode, the shutter stays open as long as you hold the shutter button, or until you press it a second time. This is essential for astrophotography, firework captures, and creative long exposure work. A remote shutter release or cable release prevents camera shake during these extended exposures.

Scene Modes

Many cameras include preset scene modes: Portrait, Landscape, Sports, Night, Macro, and others. These are essentially Auto mode with pre-programmed biases. Portrait mode favors wide apertures for background blur. Sports mode favors fast shutter speeds. Landscape mode favors small apertures and vivid color processing.

Scene modes can be helpful when you are starting out, but they give you less control than the semi-automatic modes (Aperture Priority and Shutter Priority). Once you understand the exposure triangle, you can replicate what scene modes do with more precision by using the priority modes yourself.

When to use them: Quick shooting when you are still learning the relationship between aperture, shutter speed, and ISO. They are a reasonable bridge between Auto and the creative modes.

Which Mode Should You Use?

Continue Learning

Understanding camera modes is the first step toward creative control. Explore these related guides:

• Aperture Explained
• Shutter Speed Explained
• Understanding ISO
• Exposure: The Complete Guide
• The Exposure Triangle
• Shooting in Manual Mode
• Camera Metering Modes