Key Takeaways
1. Xiaomi unveiled its Modular Optical System (MOS) during the launch of the Xiaomi 15 and Xiaomi 15 Ultra.
2. The MOS is built around a Micro Four Thirds (M4/3) sensor, which is approximately double the size of the Sony LYT-900 sensor.
3. The MOS features a new Light Fusion X sensor with a native output of 100 MP, surpassing typical M4/3 sensors that usually max out at 25 MP.
4. The system attaches to the Xiaomi 15 via a magnetic ring and utilizes ‘LaserLink’ technology, allowing data transmission speeds of up to 10 Gbit/s.
5. The MOS can theoretically handle ‘Ultra RAW’ files in real-time, capturing images with 16 stops of dynamic range, but its mass production and availability as an accessory remain uncertain.
Xiaomi revealed its Modular Optical System (MOS) to the public yesterday during the launch of the Xiaomi 15, Xiaomi 15 Ultra, and several other new devices. Today, the company has showcased the MOS prototype at MWC 2025 in Barcelona, while providing additional information about the system.
Key Features of the MOS
To summarize, Xiaomi confirmed on Sunday that the MOS is built around a Micro Four Thirds (M4/3) sensor. This sensor is about double the size of the Sony LYT-900, which is used in the main camera of both the Xiaomi 14 Ultra and Xiaomi 15 Ultra (currently priced at $1,049 on Amazon).
Sensor Details
Xiaomi has also announced that the MOS incorporates a new Light Fusion X sensor, which has a native output of 100 MP. In comparison, most M4/3 sensors typically do not exceed 25 MP. Additionally, Xiaomi explained that this sensor operates alongside a 35 mm lens with an f/1.4 aperture, featuring a minimum focus distance of 30 cm.
Connection and Performance
The MOS attaches to a specially modified Xiaomi 15 using a magnetic ring and a technology called ‘LaserLink,’ which can transmit data at speeds of up to 10 Gbit/s. This setup theoretically enables the Xiaomi 15 to handle ‘Ultra RAW’ files in real-time, capturing images with a remarkable 16 stops of dynamic range. However, it is still uncertain if the Xiaomi MOS will be produced on a large scale and made available for consumers as an accessory.
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