Have you ever noticed that photos on Xiaomi are either too noisy or too blurry in the dark? ISO β This is a parameter that is responsible for the light sensitivity of the camera matrix, and many users do not even realize that in manual mode (Pro or Manual) you can manually adjust this indicator, significantly improving the quality of the images.
In this article, we will understand what is ISO in the camera of the smartphone, how it works in Xiaomi devices (including Redmi models, POCO And the flagship series, and why the automatic mode doesn't always do the job. ISO It is best for shooting during the day, at dusk or in artificial lighting, as well as how to avoid common mistakes, because of which photos lose detail.
We will pay special attention to practical advice: for example, how to combine ISO You'll find yourself in a position where you can, with shutter speed and aperture, to balance brightness and noise. FAQ The most common questions are: Why is it that ISO The photos become grainy" to "can I change ISO camera-standard".
What is it? ISO In photography and how it works in Xiaomi smartphones
ISO (The International Organization for Standardization is a standard that defines the light sensitivity of a camera matrix. ISO This is a signal that shows how much the sensor signal will be amplified before writing to the file. ISO, The brighter the picture will be, but the more digital noise (grain) will be on it).
In smartphones Xiaomi (for example, Xiaomi 13 Pro, Redmi Note 12 Pro)+ or POCO F5) ISO It works on the same principle as SLR cameras, but with some limitations, because the physical size of the array in phones is much smaller than in professional cameras, so noise appears at relatively low values, for example, starting from the beginning of the first stage of the spectrum. ISO 800β1600.
In automatic mode, the Xiaomi camera picks up itself ISO, But algorithms are not always perfect: they sometimes oversensitize, which makes the photos dirty, or they understate the images, and the frame is too dark. ISO might be useful.
- π± Low. ISO (50-400: Minimal noise, but requires a lot of light.
- π Average. ISO (400β1600: Compromise between brightness and noise, suitable for rooms with good lighting.
- π High. ISO (1600β6400+): Maximum sensitivity, but high noise, used in dark environments.
β οΈ Note: In Xiaomi budget models (e.g. Redmi) 10A or POCO M5) high-level ISO It can make a very noticeable noise already with ISO 1600. Flagship devices (series Xiaomi) 12/13) They are better at this thanks to better noise reduction algorithms.
How to change ISO Xiaomi camera: step-by-step instructions
To manually adjust ISO On a Xiaomi smartphone, you'll need to switch to a professional mode (Pro or Manual:
- Open the Camera app.
- Fly through the shooting modes to the right or click on the inscription More (depending on the model).
- Select Pro (or Manual in some firmware).
- At the top of the screen, you'll see a settings panel. ISO (commonly marked ISO 100, ISO 400 etc.).
- Touch the value ISO and with a slider or list, select the desired number.
On some models (for example, Xiaomi 13 Ultra) is available advanced manual mode with the ability to fix ISO For the video:
Camera settings β Additional β Video Modes β Manual ISO controlPlease note: in standard mode (Photo or Portrait) change ISO This option is only available in Pro mode.
Check the lighting of the scene
Choose the minimum possible ISO conditional
Lock the smartphone (station or stable surface)
Turn off digital zoom (increases noise)
Take a few test pictures-->
Optimal values ISO for different shooting conditions
Choosing the right one ISO It depends on the lighting, the model of the smartphone, and even what object you are shooting. Below is a table with recommended values for different scenarios:
| Filming conditions | Recommended ISO | Additional advice |
|---|---|---|
| Bright sunny day | ISO 50β200 | Use the minimum. ISO, If necessary, reduce the shutter speed. |
| Cloudy weather/shadow | ISO 200β800 | If the picture is too dark, zoom in. ISO gradually, keeping track of the noise. |
| Room lighting (lamps, chandeliers) | ISO 800β3200 | It is better to use a tripod or support to reduce trembling in long exposure. |
| Night photography (street, stars) | ISO 3200β6400+ | Combine with a long exposure (from the 1/4 Sets) and fix the phone. Turn on Night mode for better results. |
| Photography of moving objects | ISO 400β1600 | Raise up. ISO, You can cut your exposure and avoid lubrication, but don't overdo it! |
In smartphones Xiaomi with matrices Sony IMX (for example, IMX707 Xiaomi 12S Ultra) noise reduction is more efficient, therefore ISO You can increase it boldly to 3200-4000 without critical loss of quality.
ISO 100β400
ISO 400β1600
ISO 1600β3200
Above 3200
I don't use manual mode.-->
Connection ISO with exposure and aperture: how to achieve balance
ISO β It's one of three components of the so-called "exposure triangle" (along with shutter speed and aperture, f/1.9 Redmi Note 11 Pro+), Therefore, it is possible to manage only ISO And the exposure. That's how they interact:
- βοΈ Long exposure + low-key ISO: Good for static objects in the dark (like nightscape), but requires a tripod.
- β‘ Short exposure + high-end ISO: Suitable for moving objects (children, sports) but increases noise.
- π― Averages: Optimal for most scenarios (e.g, ISO 800 + exposure 1/30).
Example of settings for shooting a portrait in the room:
- Install. ISO 800.
- Select the shutter speed. 1/60 or shorter to avoid lubrication.
- If the frame is dark, zoom in first. ISO 1600, not shutter speed (otherwise you risk getting blurred).
β οΈ Attention: In video mode on Xiaomi manual setting ISO It's not available in all models. POCO X5 Pro can be fixed ISO only when filmed in 4K, and in Redmi. 9A This option is not available at all.
Common mistakes in working with ISO and how to avoid them
Many Xiaomi users make common mistakes that ruin the quality of their photos, and here are the most common ones:
- Too high. ISO In light conditions, for example, to film in light conditions. ISO 3200 in the sun is guaranteed to re-light and loss of parts.
- Ignoring exposure. Boosting ISO, Remember to adjust shutter speed, otherwise the photos will be either dark or blurred.
- Not post-processing, even if you're high. ISO Noise can be reduced in editors (e.g. Lightroom Mobile or Snapseed).
- It's a long exposure shot. ISO 100 and endurance 1/10 The slightest shaking of the hand will ruin the frame.
To avoid these mistakes, follow a simple rule: first set up shutter speed, then ISO. For example, if you are filming the sunset:
- Set the shutter speed. 1/125 (to avoid the sky's re-light).
- Pick up ISO so that the histogram of the exposure is closer to the right edge, but does not rest on it.
π‘
The Google Camera app (if installed on your Xiaomi) has Night Sight feature that automatically optimizes for the camera. ISO And you can use the shutter speed for night photography, and try it if the standard Night mode doesn't work.
How to reduce noise in high-quality photos ISO
Even if you've set it right. ISO, So, you can see noise artifacts in photos, and here are a few ways to reduce them:
- π² Use the Night mode. In Xiaomi models, it automatically combines multiple frames, reducing noise.
- πΌοΈ You can edit the photo in the editor. Lightroom has a noise reduction tool).
- π Take it down. RAW. Format RAW (Available in Pro mode) saves more data, which makes post-processing easier.
- π± Update the firmware. MIUI They often improve noise reduction algorithms (e.g., Xiaomi). 13T Pro after updating to MIUI 14).
If you're filming in RAW, Try the following sequence of actions:
- Move the file to the PC.
- Open it in Adobe Camera Raw or Darktable.
- In the Noise Reduction section, set Lumination Noise at 30β50 and Color Noise at 25β40.
- Export to JPEG with a quality of 90-100%.
What is RAW and why is it needed?
Comparison ISO In different models of Xiaomi: which is better?
Not all Xiaomi smartphones are equally good at high values ISO. It depends on the size of the matrix, the type of sensor, and the processing algorithms:
| Model | Max Max. ISO pro-mode | Quality at high quality ISO | Features |
|---|---|---|---|
| Xiaomi 13 Ultra | ISO 12800 | βββββ (Minimum noise up to 6400) | The Sony Matrix IMX989 (1 inch), best noise cancellation in the lineup. |
| Redmi Note 12 Pro+ | ISO 6400 | ββββ (noises are noticeable at 3200) | 200-MP sensor, but small pixel size (0.64 ΞΌm). |
| POCO F5 | ISO 3200 | βββ (noises since 1,600) | Budget matrix, low noise reduction. |
| Xiaomi 12S | ISO 6400 | ββββ (good to 3200) | The collaboration with Leica has improved the processing of colors and noise. |
If you are interested in shooting in dark conditions, pay attention to models with large matrices (1/1.28" or more RAW. For example, Xiaomi 13 Pro or Xiaomi 12S Ultra shows better results with high performance ISO Due to hardware acceleration of processing.
π‘
Xiaomi flagship models (series) 12/13) let off ISO before 12800 without critical quality loss, while in budget smartphones (POCO, Redmi's already in ISO 3200 there's a lot of noise.