10 шт. 1/2. 5 дюймов F2.0 M12 видеонаблюдения объектив камеры борту 12 мм HD 5mp 16 мм cctv объектив для ИК-камеры видеонаблюдения доска
Цена: $40.02
есть в наличии
Описание
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1/2.5 inch F2.0 M12 cctv board camera lens 12mm HD 5mp 16mm cctv lens for IR cctv camera Board
Features:
12mm 5mp 30 degrre angle board lense for CCTV IP cameras has standard M12x0.5 thread, suitable for both 1/3" and 1/4" CCD chipsets.
Standard M12x0.5 thread
Image format for both 1/3" and 1/4" CCD
Specifications:
Angle of View: 30 degree
Focal Length: 12mm
Back Focal Length: 5.44mm
Format: 1/2.5"
Mount thread: 12x 0.5
Weight: 7g
Packaging included:
1× HD 12mm IR Board Lens 5.0mp for CCTV IP Camera
Camera lens selection principle and monitoring angle:
Surveillance camera lens selection of the parameter value is greater, the more narrow the look, and vice versa, the smaller the lens parameters, the smaller the wider.
For example, want to see 10 meters need 3.6-4MM camera lens, 20 meters need 6MM camera lens and 30 meters need 8MM camera lens.
40 meters need 12MM lens, 50 meters need 16MM lens ,
With the environment, all according to the actual selection.
Monitor camera select 1/3 lens for example monitoring angle:
Surveillance camera lens 2.1MM small lens - monitoring angle 150 degrees;
Surveillance camera lens 2.5MM small lens - monitoring angle 130 degrees;
Surveillance camera lens 2.8MM small lens - monitoring angle 115 degrees;
Surveillance camera lens 3.6MM small lens - monitoring angle 80-96 degrees;
Surveillance camera lens 4MM- monitoring angle 78-80 degrees;
The camera lens 6MM- monitoring perspective 53-60;
The camera lens 8MM- monitoring perspective 40-45;
The camera lens 12MM- monitoring perspective 23-30;
To monitor the camera monitoring 16MM- angle 15-17 degrees;
Illustrate the relationship between focal length and monitoring angle:
Surveillance camera lens 3.5-8MM-- monitoring angle 96-45 degrees;
Surveillance camera lens 6-15MM-- monitoring angle 53-23 degrees;
Surveillance camera lens 6-36MM-- monitoring angle 53-10 degrees;
Surveillance camera lens 8.5-51MM-- monitoring angle 57-10 degrees;
Surveillance camera lens 6-60MM-- monitoring angle 53-6 degrees;
(Each manufacturer's lens angle is not the same, there is a certain angle difference.)
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Характеристики
- Бренд
- DONTER
- Номер модели
- M12-5MP-12mm
- Объем памяти
- Нет
- Фокусное расстояние
- 12 мм
- Place of Origin
- China (Mainland)
- Name
- OEM
- Focal Length
- 12mm
- Image Format
- 1/2.5"
- FNo.F
- 2.0
- Horizontal Field of View
- 28
- M.O.D
- 0.3m
- Mount
- M12
- Dimension
- 14(D)x16.7mm(L)
- Pixel
- 3MP
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