The difference between 2mm and 2.8mm lenses on a security camera like the Hikvision DS-2XM6726G1-I(D)(M)(/ND) primarily affects field of view and level of detail.
2 mm, horizontal FOV 132°, vertical FOV 77°, diagonal FOV 152°
2.8 mm, horizontal FOV 105°, vertical FOV 56°, diagonal FOV 126°
Here’s a clear comparison:
2mm Lens
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Field of View: Very wide (approx. 130°–150° horizontal)
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Coverage: Covers more area side-to-side; ideal for tight spaces like inside vehicles or small rooms.
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Detail: Less detail at a distance due to wide angle and image stretching.
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Use Case: Excellent for wide-angle overview shots where facial or license plate detail is less critical (e.g., inside buses, hallways).
2.8mm Lens
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Field of View: Wide (approx. 100°–110° horizontal)
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Coverage: Still broad but with a narrower angle than 2mm, making it more focused.
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Detail: Better subject detail at moderate distances (compared to 2mm).
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Use Case: Great for entrances, small outdoor areas, or general-purpose use when you want a balance of coverage and clarity.
The Hikvision DS-2XM6726G1-I(D)(M)(/ND) is a high-performance 2 MP mobile network dome camera specifically designed for mobile and transport environments. Compact, rugged, and reliable, this camera delivers exceptional video performance even in challenging and dynamic conditions such as on buses, trains, emergency vehicles, and other moving platforms.
Equipped with a high-sensitivity image sensor, this camera captures full HD 1920 × 1080 resolution video with sharp clarity and minimal noise. It is available with fixed lens options including 2 mm, 2.8 mm, 4 mm, and 6 mm, providing flexibility for various fields of view depending on installation requirements—whether you need ultra-wide coverage or more focused detail.
The camera integrates 120 dB Wide Dynamic Range (WDR) technology to ensure optimal imaging in scenes with both intense light and dark shadows, making it highly effective in environments with glare from windows, headlights, or rapidly changing lighting conditions. This ensures that critical details are not lost, even in backlit scenarios.
Its rugged housing is built to withstand the rigors of transportation use. The camera is both IK10-rated for vandal resistance and IP67-rated for protection against water and dust ingress, making it suitable for outdoor and vibration-prone installations. Designed for reliable operation in harsh mobile environments, it maintains performance despite constant motion, vibration, temperature variations, and exposure to the elements.
Additional features include H.265+ video compression, which significantly reduces storage and bandwidth usage without sacrificing image quality, and smart video analytics, including motion detection and tamper alarms, which enhance security efficiency.
This model supports onboard storage via a microSD card slot, offering edge recording redundancy in case of network failure, and seamless integration with Hikvision’s broader video management ecosystem.
Whether deployed on a fleet of public buses, service vehicles, or rail networks, the Hikvision DS-2XM6726G1-I(D)(M)(/ND) delivers durable, high-definition video surveillance with intelligent features designed specifically for the challenges of mobile security.
