1220 Series 12mm HD 8MP HD Surveillance Solar Camera Lens
Solar cameras Usually refer to surveillance cameras that come with solar panels and can be charged by solar energy to maintain operation. Due to their independent power
supply characteristics, these cameras are very suitable for installation in outdoor places without mains power supply, such as farms, fish ponds, construction sites, villas,
ranches, orchards, and the wild.
The "lens" part of the solar camera is actually no different from the lens type used in ordinary surveillance cameras. The main difference lies in its power supply method.
However, when choosing a solar camera, the choice of lens is indeed very important because it directly affects the range, clarity and effect of monitoring.
The following are common lens types for solar cameras and their selection considerations:
Common lens types:
Fixed lens
Features: Fixed focal length and fixed viewing angle. Once installed, the shooting range is determined.
Advantages: Simple structure, relatively low cost, and image quality is usually good because there is no optical loss of zoom components.
Disadvantages: Inability to adjust focal length and viewing angle, poor flexibility.
Applicable scenarios: There is a clear demand for the monitoring range and no need to adjust the viewing angle frequently, such as doorways, specific channels, etc.
Zoom Lens
Features: The focal length can be adjusted within a certain range, thus changing the viewing angle and magnification.
Advantages: High flexibility, the monitoring range can be adjusted as needed to achieve long-distance detailed observation or wide-angle overview.
Disadvantages: Relatively high cost, more complex structure, and in some cases the image quality may be slightly lower than that of a fixed-focus lens of the same price.
Classification:
Manual zoom lens: The focal length and focus need to be adjusted manually.
Motorized zoom lens (Motorized Zoom Lens / Varifocal Lens): The focal length and focus are adjusted by remote control (such as through a mobile phone app or computer
software), and there is no need to climb high after installation. This is very common in solar cameras because they are often installed in places that are inconvenient to
reach frequently.
Applicable scenarios: The monitoring range needs to be flexibly adjusted, such as large-area area monitoring, and places that need to take into account both the overall
and detailed aspects.
Wide-angle Lens
Features: Short focal length, wide viewing angle, and the ability to capture a wider range of scenes.
Advantages: One camera can cover a larger area, reducing the number of cameras required.
Disadvantages: Barrel distortion may occur at the edge of the picture ("fisheye" effect), distant objects will appear small, and the ability to capture details is poor.
Applicable scenarios: Monitoring areas that require large coverage, such as gates, yards, parking lots, etc.
Telephoto Lens
Features: Long focal length, narrow viewing angle, can bring distant objects closer and magnify them.
Advantages: Suitable for long-distance monitoring and capturing details, such as monitoring distant animals, vehicle license plates, etc.
Disadvantages: Small viewing angle, multiple cameras are required to cover a large area, easy to shake, and high requirements for installation stability.
Applicable scenarios: Monitoring distant targets, such as deep in farmland, on the edge of pastures, sports events, etc.
Fisheye Lens
Features: Extremely wide viewing angle (usually up to 180 degrees or even 360 degrees), which can achieve panoramic monitoring.
Advantages: One camera can achieve panoramic coverage and reduce blind spots.
Disadvantages: Severe picture distortion and loss of details at the edge of the image.
Applicable scenarios: Indoor panoramic monitoring, or outdoor scenes where a specific area needs to be monitored without blind spots.
Additional considerations for solar camera lens selection:
In addition to the above lens types, solar cameras also need to consider the following factors when selecting lenses:
Infrared night vision capability: Since solar cameras are often used for outdoor night monitoring, the lens needs to have good infrared transmittance and cooperate with
the camera's built-in infrared light to provide clear night vision images. Many solar cameras emphasize their "starlight-level night vision" or "full-color night vision"
functions, which usually means that they can obtain good color images even in low light.
Aperture size (F value): The larger the aperture (the smaller the F value), the more light enters the lens, and the better the shooting effect in low-light environments. This is
especially important for cameras that rely on solar power, because they may not be able to obtain a stable strong light source.
Resolution support: The lens needs to support the highest resolution that the camera sensor can achieve (such as 2K, 4K) to fully utilize the camera's imaging potential.
Weather resistance: For outdoor use, the lens itself also needs to have certain waterproof, dustproof, fogproof, high temperature and low temperature resistance.
Anti-shake function: If it is a telephoto lens, or installed in a place that is prone to shaking, a lens with optical image stabilization (OIS) function will be very helpful to
reduce image blur.
| 1.Model:OKS-1220M2-N01 |
| 2.Optical Specifications |
| NO. | Items | Description |
| 1 | Focal-Length | 12MM±5% |
| 2 | F No | F2.0±5% |
| 3 | Optical Back Focal Length | 7.7mm±0.3 |
| 4 | Flange Back Focal Length | 7.4mm±0.3 |
| 5 | MAX Image Circle | θ6.2 |
| 6 | Lens Structure | 4G +IR |
| 7 | Mount | M12*0.5 |
| 8 | FOV | sensor | H | V | D |
| 1/3" | 23° | 17.2° | 28.6° |
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| 9 | Distortion TV | -2.00% |
| 10 | CRA | <15deg |
| 11 | TTL | 21.80±0.3 mm |
| 12 | Focus Range | Focus range is 0.6M~Infinity |
| 13 | Operating Temperature | -40℃~+85℃ |
| 14 | Lens Barrel Size | Ø14.0mm(front end) M12mm(back end mount) |