Why Xiaomi smartphones have three cameras behind: a detailed analysis of the functions

Three cameras on Xiaomi smartphones are no longer a rarity, even in budget models. But why does the manufacturer install three lenses at once when one was enough? At first glance, this may seem like a marketing ploy, but in fact each module performs its own unique task.

In this article, we'll look at what the three cameras do, how they interact with each other, and why it matters to the user, how to use each module correctly, what effects you can get, and whether you should overpay for additional lenses, and how the three cameras work in different scenarios, from portrait photography to night photos.

How to arrange a triple camera in smartphones Xiaomi

Three cameras are not just three identical lenses, but a complex of a basic module, a wide-angle and telephoto/macro/depth, each of which is responsible for its own type of shooting:

• 📷 The core module is the largest and highest quality, with maximum resolution (e.g. 48, 64 or 108 MP in flagships) and is responsible for most shots in standard conditions.
• 🌄 Wide-angle – widens the viewing angle, allowing you to capture more space (for example, for landscapes or architecture).
• 🔍 Additional module – can be telephoto (for zooming), macro (for shooting small objects) or depth sensor (for portrait mode).

Depending on the Xiaomi model, the combination of modules can vary. For example, the Redmi Note 12 Pro+ uses a 200-MP main camera + 8-MP wide-angle + 2-MP macro, and the Xiaomi 13 Ultra - 50-MP main + 50-MP telephoto + 50-MP wide-angle. The more expensive the smartphone, the more balanced and functional triple camera.

It’s important to understand that the three cameras work together, not separately: Xiaomi’s algorithms analyze the scene and automatically switch between modules or combine their data for better results. For example, when taking a portrait, both the main camera (for detail) and the depth sensor (for blurring the background) can be used.

Why You Need a Wide Field Module and When to Use It

The wide-angle camera is your assistant when you want to capture as much space as possible, and it's particularly useful in three scenarios:

1. Landscapes and architecture are the shooting of mountains, seas, tall buildings or cramped spaces where a standard lens does not fit the entire scene.
2. Group photos – when you need to put a lot of people in the frame, and there is no way to move back.
3. Video blogs and streams – a wide angle allows you to show more context (for example, a review of a room or desktop).

But there are downsides to wide-angle cameras: the distortions around the edges (called the barrel effect) can make objects look unnaturally elongated. At Xiaomi, this is partially fixed by software, but you can't completely remove the distortions. So, for portraits or small details, it's better to use the main module.

⚠️ Attention: When shooting with a wide-angle camera, avoid placing important objects around the edges of the frame - they will be distorted.

Example: if you're photographing the Egyptian pyramids up close, a wide-angle module will help you capture them completely, but the people in the foreground can be disproportionately large heads, and in such cases, it's better to take a few shots and then glue them into a panorama.

Telephoto, macro and depth sensor: what module do you need?

The third camera in Xiaomi smartphones can perform different functions depending on the model.

For example, Xiaomi 13T Pro uses 50-MP telephoto with 3x optical zoom, which allows you to take clear pictures of remote objects, while budget Redmi often put 2-MP macro, which is only suitable for shooting at point-blank range.

Importantly, not all the extra modules are equally useful. The depth sensor is inferior in quality to the portrait mode on the main camera with AI algorithms, and the macro 2 MP often gives blurry images. Telephoto really pays off if you want to shoot from a long distance.

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To check which module is used when shooting, turn on the display of the aperture in the camera settings (Settings → Additional → Show the aperture).

How three cameras improve night photography

One of the key benefits of the triple camera is improved night photography, which Xiaomi smartphones use a combination of:

• 🌙 The main module with a large aperture (for example, f/1.9) and pixel binning (combining pixels for better light transmission capacity).
• 🔦 Night Mode algorithms that analyze data from multiple cameras to reduce noise.
• 🎯 Laser autofocus (in some models) for precise focusing in the dark.

For example, in Xiaomi 12S Ultra night mode uses all three cameras: the main captures the maximum amount of light, wide-angle helps correct distortion, and telephoto adds detail, resulting in photos are brighter and clearer than when shooting on a single-camera smartphone.

Comparison: On the Redmi Note 11 (with one main camera), night shots often come out noisy, whereas on the Xiaomi 13 Pro (with a triple camera), they look more natural thanks to collaborative data processing.

⚠️ Warning: When shooting at night, avoid using digital zoom, which makes noise, or go closer or use optical zoom (if you have one).

Portrait Mode: How Three Cameras Create DSLR Effects

The blurred background effect (bokeh) is one of the main advantages of the triple camera, which Xiaomi uses:

1. Depth Sensor (if any) – measures the distance to the object and background.
2. AI algorithms analyze the boundaries of objects for precise blurring.
3. Double camera (main camera) + Telephoto/wide-angle) – compares paralax to build 3D-stage-model.

For example, in the Xiaomi Mi 11, portrait mode works even without a depth sensor: algorithms analyze data from the main and wide-angle cameras to separate the person from the background, resulting in blurring more natural than on smartphones with a single camera.

Advice: for the best effect of taking a portrait:

If your Xiaomi model doesn't have a depth sensor, the portrait mode will still work, but less accurately, and in such cases, it's better to shoot in well-lit conditions, where the AI is easier to separate the object from the background.

Is it worth overpaying for three cameras: a comparison with single-camera smartphones

Three cameras are always a trade-off between functionality and price, so let's compare what you get for extra modules:

So the bottom line is, if you're not a professional photographer and you only want basic shots, one camera can do it, but if you like to experiment with angles, shoot in different environments, or blog, three cameras will pay off.

Example: the POCO X3 Pro (with one 48 MP camera) is cheaper than the Xiaomi 11 Lite NE (with a triple camera), but inferior to it in versatility. If you are interested in taking landscapes and portraits, you should choose a model with three modules.

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Three cameras are worth it if you're actively using at least two of the three modules, and if you're shooting with the main camera only, there's no point in overpaying.

How to Use Three Cameras on Xiaomi: Practical Tips

To maximize the potential of a triple camera, follow these guidelines:

• 📸 Automatic Camera Selection: Most Xiaomi models have the camera switching between modules by itself, for example, when zoom approaches, telephotos are turned on, and in tight spaces, wide-angle cameras are switched on.
• 🔧 Manual mode: In Pro mode, you can manually select a camera (for example, for macro or telephoto) and adjust the exposure, ISO, white-colour.
• 🌟 Use AI chips: Turn on Magic Zoom (in some models) for smooth zooming or Document Mode for text shooting.
• 📱 Xiaomi regularly improves photo processing algorithms through updates MIUI.

Example: In Xiaomi 13 Pro, when shooting in Photo mode, the camera automatically selects the best module, but in Pro Mode you can manually switch to telephoto for 3x zoom or wide-angle for landscapes.

Note the quality of the processing: sometimes the triple camera images look better because of the software, not the hardware. For example, in Redmi Note 12 the main camera is 48 MP, but the real resolution of the images is 12 MP (due to pixel binning), This is a normal practice aimed at improving the light transmission.

FAQ: Frequent questions about Xiaomi's triple camera