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HD CCTV Lens Chart Cheat Sheet (DRAFT) by [deleted]

HD CCTV Lens Chart for 1080p, 720p, AHD, HD-SDI, HD-TVI, IP Cameras

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Introd­uction

HD CCTV Lens Chart for 1080p, 720p, AHD, HD-SDI, HD-TVI, IP Cameras

This page contains lens charts for various image sensor sizes used in HD CCTV cameras (AHD, HD-TVI, HD-CVI, HD-SDI) and some network IP cameras. This lens chart can be used by video survei­llance installers to help plan what size lens is needed for their applic­ation based on the angle of view that the lens will provide. Lens size and image sensor size both impact the angle of view that security cameras provide. HD CCTV cameras (AHD 720p and 1080p resolu­tion) and 1080p TVI cameras typically use one of the following image sensor sizes: 1/2.7", 1/2.8", 1/3" and 1/3.2". Varifocal lenses are more typical than fixed lenses because they allow the installer to adjust the angle of view specif­ically for their instal­lation.

1/2.7" Image Sensor

• 2.8mm - 114°
• 3.6mm - 94°
• 4mm - 81°
• 6mm - 56°
• 8mm - 42°
• 12mm - 28°
• 16mm - 20°
• 22mm - 16
The list shows the horizontal angle of view that you can expect when your camera has a 1/2.7" image sensor. For example, if your HD security camera has a 1/2.7" image sensor and a 2.8mm lens, it will yield a 114° field of view.

1/2.8" Image Sensor

• 2.8mm - 111°
• 3.6mm - 91°
• 4mm - 79°
• 6mm - 54°
• 8mm - 41°
• 12mm - 27°
• 16mm - 19°
• 22mm - 15°
The list shows the horizontal angle of view that you can expect when your camera has a 1/2.8" image sensor. For example, if your HD security camera has a 1/2.8" image sensor and a 2.8mm lens, it will yield a 111° field of view.
 

Field of View

1/3" Image Sensor

• 2.8mm - 95°
• 3.6mm - 77°
• 4mm - 67°
• 6mm - 46°
• 8mm - 35°
• 12mm - 23°
• 16mm - 17°
• 22mm - 14°
The list shows the horizontal angle of view that you can expect when your camera has a 1/3" image sensor. For example, if your HD security camera has a 1/3" image sensor and a 2.8mm lens, it will yield a 95° field of view.

1/3.2" Image Sensor

• 2.8mm - 83°
• 3.6mm - 66°
• 4mm - 59°
• 6mm - 40°
• 8mm - 30°
• 12mm - 20°
• 16mm - 15°
• 22mm - 12°
The list shows the horizontal angle of view that you can expect when your camera has a 1/3.2" image sensor. For example, if your HD security camera has a 1/3.2" image sensor and a 2.8mm lens, it will yield a 83° field of view.
                           

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