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    AI Overview
    2.8-12mm Zoom CCTV Camera ELP 4K USB HDMI Manual Zoom Camera ...
    A 1/2.8 inch CCTV lens for video conferencing typically offers a wide field of view (FoV) with good low-light performance, often with a 2.8mm focal length for broad room capture or a 2.8-12mm varifocal for adjustable zoom, providing clear, high-resolution images (like 2MP/3MP/4K) essential for detailed video meetings by balancing wide coverage with sharp detail. 
    This video demonstrates the difference between a 2.8mm and a 4mm lens:
    Related video thumbnail
    50s
    XLR Security
    YouTube • Dec 15, 2025
    Key Features for Video Conferencing: 
    • 1/2.8" Sensor Size: This format is common in higher-quality cameras, offering better light sensitivity and image quality than smaller sensors, crucial for varied indoor lighting.
    • Wide Angle (e.g., 2.8mm): Provides a broad perspective to capture entire meeting rooms or multiple participants, with a field of view often over 100 degrees.
    • Varifocal (e.g., 2.8-12mm): Allows manual or motorized adjustment to zoom in for detail or zoom out for a wider view, offering flexibility for different room sizes.
    • High Resolution (2MP, 3MP, 4K): Delivers sharper, more detailed images, making facial features and presentations clearer.
    • Low Distortion: Ensures straight lines remain straight, important for professional presentations and clear communication.
    • Good Low-Light Performance: Essential for indoor environments, producing clear images without excessive noise or reliance on IR (Infrared) light. 
    Why It's Used in Video Conferencing: 
    • Captures Everyone: A wide FoV ensures all participants in a meeting are visible.
    • Flexibility: Varifocal lenses adapt to different room layouts and needs.
    • Clarity: High resolution and quality optics make remote interactions more effective. 
    Common Types & Mounts: 
    • Board Lenses: Compact lenses designed to fit directly into camera modules.
    • C/CS Mount: Standardized mounts for interchangeable lenses, offering more options. 
    When choosing, look for lenses specified for HD/4K, with a 1/2.8" sensor compatibility, and features like varifocal zoom if you need adaptability. 
    • 2.8mm CCTV Camera Lens, 8MP F1.0 Pixels Full Color Warm Light ...
      Product details * About this product. See more. * Top highlights. Brand. Sanpyl. Focal Length Description. 8 millimeters. Lens Typ...
      Amazon.com
    • Amazon.com : 2.8-12mm CCTV Camera Lens, 1/2.7 3MP 2.8 ...
      2.8-12mm CCTV Camera Lens, 1/2.7 3MP 2.8-12mm HD Manual Zoom Mount CCTV Board Lens for Security Camera. 1 / 2.7 image format and 9...
      Amazon.com
    • HD SDI Camera, 2MP 1080P Digital CCTV Security Camera, 1/2.8 ...
      HD SDI Camera, 2MP 1080P Digital CCTV Security Camera, 1/2.8 High Sensitivity Sensor CMOS with 2.8-12mm Manual Varifocal HD 3MP Le...
      Amazon.com
    Show all
    • Amazon.com : 2.8-12mm CCTV Camera Lens, 1/2.7 3MP 2.8 ...
      2.8-12mm CCTV Camera Lens, 1/2.7 3MP 2.8-12mm HD Manual Zoom Mount CCTV Board Lens for Security Camera. 1 / 2.7 image format and 9...
      Amazon.com
    • HD SDI Camera, 2MP 1080P Digital CCTV Security Camera, 1/2.8 ...
      HD SDI Camera, 2MP 1080P Digital CCTV Security Camera, 1/2.8 High Sensitivity Sensor CMOS with 2.8-12mm Manual Varifocal HD 3MP Le...
      Amazon.com
    • 2.8mm CCTV Camera Lens, 8MP F1.0 Pixels Full Color Warm Light ...
      Product details * About this product. See more. * Top highlights. Brand. Sanpyl. Focal Length Description. 8 millimeters. Lens Typ...
      Amazon.com
    • Dome 4K IP Camera: 2.8-12mm Motorized Varifocal Lens
      Jul 30, 2025 — hi everyone Mike from CCTV Camera Pros. here In this video. I want to show you how the motorized zoom lens of our new ...
      YouTube·CCTV Camera Pros
      5:39
    • 3MP HD CCTV Camera Lens 2.8-12mm Varifocal Manual Zoom
      About This Product. Need to upgrade or replace your security camera lens? This 3MP HD CCTV lens might be just what you're looking ...
      yourpghlawyer.com
    • Security Camera Lens 1 Million 2.8mm 115 Degree Wide Angle M12 ...
      Product description Quanmin CCTV camera lens is a key optical component carefully designed for surveillance camera systems. It pla...
      Amazon.com
    • 2.8mm vs. 4mm: What's the Difference - Reolink
      Jul 2, 2024 — A 2.8mm lens offers a wider field of view and can cover large open spaces effectively. In contrast, a 4mm lens provides...
      Reolink
    • 1/3" CCTV 2.8mm Lens Black for CCD Security Box Camera
      Product Description Super-Wide Angle Lens: The 2.8 mm Board Lens provides an extra-wide field of view, which is ideally suited for...
      Amazon.com
    • 1/2.8" CMOS 20*75mm Diameter 20mm 2MP Small Bullet ...
      1/2.8" CMOS 20*75mm Diameter 20mm 2MP Small Bullet 0.001Lux AHD/TVI/CVI/CVBS UTC 4in1 3.7mm Pinhole Lens HD Camera| Alibaba.com. P...
      Alibaba.com
    • How Far Can I See With My Cameras? - AvertX
      Table_title: How far can my AvertX camera see? Table_content: header: | Camera and Focal Length | Recognition (60PPF) | Detection ...
      AvertX
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    Video Conference 1/2.8 Inch CCTV Camera Lens


    wintop optics
    https://www.wintoplens.com › video-conference-128-in...
    wintop optics
    https://www.wintoplens.com › video-conference-128-in...
    Custom Video Conference 1/2.8 Inch CCTV Camera Lens manufacturers here! More optical lens Solutions welcome to contact WINTOP OPTICS!
    Video Conference 1/2.8 Inch CCTV Camera Lens from www.wintoplens.com

    Amazon.com : 2.8-12mm CCTV Camera Lens, 1/2.7 3MP ...


    Amazon.com
    https://www.amazon.com › 2-8-12mm-Camera-Manual...
    Amazon.com
    https://www.amazon.com › 2-8-12mm-Camera-Manual...
    Adjustable zoom manually with 2.8-12mm -length, will make every detail very clear, not missing any information. 3MP high-definition image brings you a ...Read more
    Video Conference 1/2.8 Inch CCTV Camera Lens from www.amazon.com
    People also ask
    What is the best lens for CCTV camera?
    A security camera lens size determines the field of surveillance view and zoom level that the camera provides. A 3.6mm lens is designed to provide an approximate 78° field of view and is the perfect camera in most CCTV applications.

    What's the difference between 2.8mm & 3.6mm lenses? - CCTVdirect


    CCTVdirect
    https://cctvdirect.co.uk › pages › what-s-the-difference-b...
    CCTVdirect
    https://cctvdirect.co.uk › pages › what-s-the-difference-b...
    Which is better 2.8 or 4mm lens CCTV?
    2.8mm vs. 4mm: What's the Difference
    For general surveillance, a 2.8mm lens field of view is wider and is excellent for monitoring large areas such as parking lots or wide open spaces. On the other hand, a 4mm lens, with its narrower perspective, is ideal when detailed observation of specific areas like doorways or narrow corridors is required.

    2.8mm vs. 4mm: What's the Difference - Reolink


    Reolink
    https://reolink.com › blog
    Reolink
    https://reolink.com › blog
    Which is better 2.8 mm or 3.6 mm CCTV?
    A 3.6 mm lens offers a narrower field of view compared to wider-angle lenses like 2.8 mm. This narrower angle can provide sharper detail and clarity, especially for objects or areas farther away from the camera.

    2.8 mm VS 3.6 mm SURVEILLANCE CAMERA LENSES


    Dicsan Technology
    https://dicsan.com › 2-8-mm-vs-3-6-mm-security-camera...
    Dicsan Technology
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    How far can a 2.8 mm lens see?
    How far can my AvertX camera see?
    Camera and Focal LengthRecognition (60PPF)Detection (20PPF)
    @ 2.8mm (107° FOV)34ft103ft
    @ 5mm (65° FOV)56ft160ft
    @ 12mm (30° FOV)120ft360ft
    HD458 (8MP, 2.8mm lens)
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    How Far Can I See With My Cameras? - AvertX


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    AvertX
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    3MP HD CCTV Camera Lens 2.8-12mm Varifocal Manual ...


    yourpghlawyer.com
    https://yourpghlawyer.com › Camera-Lens-2-8-12mm-...
    yourpghlawyer.com
    https://yourpghlawyer.com › Camera-Lens-2-8-12mm-...
    It's a varifocal lens with manual zoom that adjusts from 2.8mm to 12mm, giving you flexibility in how wide or tight your camera's field of view is. The 3 ...Read more
    Video Conference 1/2.8 Inch CCTV Camera Lens from yourpghlawyer.com
    $6.00 · 4.9(839)
    Missing: Conference ‎| Show results with: Conference

    Low distortion cctv camera lens 1/2.8" Wide angle 132 ...


    Global Sources
    https://m.globalsources.com › ... › CCTV lenses
    Global Sources
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    Globalsources.com has numerous high-quality low distortion cctv camera lens 1/2.8" wide angle 132 degree 8mp camera lens $8.8. Wholesale low distortion cctv ...
    Video Conference 1/2.8 Inch CCTV Camera Lens from m.globalsources.com
    $8.80

    4K Lens 8.0Megapixel 2.8mm 1/2.5


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    AliExpress
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    Video Conference 1/2.8 Inch CCTV Camera Lens from www.aliexpress.com

    Image sensor size - 1/1.8” vs 1/2.8"


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    IP Cam Talk
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    Feb 9, 2022 — A senor 1/1.8” is about double the size of a 1/2.8" making a camera with a 1/1.8” 4Megapixel senor about the same as a 1/2.8" 2Megapixel when it comes to light ...Read more

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    CCTV Camera Lenses | Security Camera Lens Catalog


    SourceSecurity.com
    https://www.sourcesecurity.com › Products › CCTV
    SourceSecurity.com
    https://www.sourcesecurity.com › Products › CCTV
    Looking for lens for your CCTV camera? Find hundreds of camera lenses from reputed manufacturers and suppliers of security camera lenses to meet your ...

    1/2.8" CMOS 20*75mm Diameter 20mm 2MP Small Bullet ...


    Alibaba.com
    https://www.alibaba.com › ... › Network Camera
    Alibaba.com
    https://www.alibaba.com › ... › Network Camera
    Our camera Widely apply to: Video surveillance system, Remote monitoring, HD surveillance, Artificial intelligence (AI) systems, AI Vision, Checkout with ...Read more
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    Security Informed
    https://www.securityinformed.com › cctv-camera-lens
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    https://www.securityinformed.com › cctv-camera-lens
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    Video Conference 1/2.8 Inch CCTV Camera Lens from www.securityinformed.com

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