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Looking for the right lens for your security camera? The 4mm fixed lens might be the unsung hero you need. Not too wide, not too narrow—it offers the perfect balance for monitoring stores, offices, entrances, and more. In this guide, we break down how it works, where it shines, its few quirks (like distortion), and why it’s a go-to choice for real-world surveillance—no engineering degree required.

CES 2026 marks a historic turning point for the global consumer electronics industry, particularly in the realm of optics and lens technology. The core logic of technological evolution has shifted: optical systems are no longer passive tools for image capture; they have evolved into the essential sensory terminals for Physical Artificial Intelligence (Physical AI), driving perception, decision-making, and interaction. As U.S. consumer technology industry revenue is projected to reach $565 billion in 2026, the breakthroughs in hardware—specifically lens and sensor technologies—serve as the bedrock for this massive digital ecosystem.

SINGAPORE, Feb 4, 2026 — As the Asia Photonics Expo (APE 2026) kicks off today at the Sands Expo and Convention Centre, Shanghai Silk Optical Technology is proud to announce its presence as a key exhibitor.

In the field of outdoor security surveillance, waterproof and dustproof ratings are critical indicators of product durability. IP66 and IP67, as mainstream protection standards, often confuse consumers during purchasing. While differing by only one digit, these ratings show significant differences in protection capabilities, applicable scenarios, and price positioning. With the global outdoor surveillance equipment market projected to surpass $325 billion by 2025 at a 12.7% annual growth rate, selecting the appropriate waterproof rating has become essential for ensuring long-term stable operation of monitoring systems.

The 24th China International Optoelectronics Expo will be held at the Shenzhen International Convention and Exhibition Center from September 6 to 8, 2023.

Motion DV lenses are camera accessory devices specifically designed for motion scenes. They usually have features such as anti-shake, wide-angle, and high pixel count, and are suitable for recording during outdoor activities like cycling, skiing, and fishing.