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Manufacturers of 1/2.5-inch lenses, primarily designed for CCTV, surveillance, and industrial applications, include Specialized Imaging, Optics Online, FRAMOS, and various Alibaba/Amazon suppliers like wangzhch and Wintop Optics. These lenses are frequently used in M12 or CS-mount cameras for high-definition (5MP-8MP) applications, such as 1.8mm fisheye or 3.3-10.5mm zoom.
Key 1/2.5-Inch Lens Manufacturers and Suppliers
- Optics Online (DSL188A-650-F2.0): Offers M12 S-mount lenses with 1/2.5" format, often used for 5MP sensors with a 7.12mm diagonal.
- FRAMOS: Manufactures M12 miniature lenses designed for 1/2.5-inch sensors in security surveillance.
- Wintop Optics: Produces 2MP-8MP M12 mount macro board lenses, including low-distortion models for IP security cameras.
- Contrastech: Supplies 1/2.5" zoom lenses, such as 3.3-10.5mm and 5-50mm, for machine vision and industrial inspection.
- Wangzhch (via Amazon): Provides 8MP, 2.2mm, no-distortion CCTV lenses.
Common Specifications
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8MP 2.2mm CCTV Lens 1/2.5 Inch IR No-Distortion F1. ...
Amazon.com
https://www.amazon.com › ...
Amazon.com
https://www.amazon.com › ...
High-resolution 8MP lens; Wide-angle 2.2mm lens; No-distortion lens for clear image quality; IR lens with 650nm IR filter for enhanced night vision ...Read more
Manufacturer 1/2.5 inch lens
wintop optics
https://www.wintoplens.com › manufacturer-125-inch-l...
wintop optics
https://www.wintoplens.com › manufacturer-125-inch-l...
Manufacturer 1/2.5 inch lens 2mp M12 mount macro board lens Low distortion 2.9mm cctv lens for cctv security ip cameras.Read more
Advanced Imaging Lens for Sensors up to 1/2.5 Inch
FRAMOS
https://framos.com › Optics › Lenses
FRAMOS
https://framos.com › Optics › Lenses
High-quality fixed focal lens with a focal length of 3.6 mm and F2.1 aperture. Designed for sensors up to 1/2.5 inch, offering various filter options and ...
5–8 day delivery
4mm HD lens 5 MP 1/2.5 inch M12-Mount machine vision ...
eBay
https://www.ebay.com › ... › Lenses & Filters › Lenses
eBay
https://www.ebay.com › ... › Lenses & Filters › Lenses
4mm HD lens 5 MP 1/2.5 inch M12-Mount machine vision compact camera lens ; Est. delivery. Fri, May 15 - Thu, May 28. From Shenzhen, China ; Returns. Accepted ...Read more
$20.00In stock$7.95 delivery
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What does 1 2.5 sensor mean?
Sizes are often expressed as a fraction of an inch, with a one in the numerator, and a decimal number in the denominator. For example, 1/2.5 converts to 2/5 as a simple fraction, or 0.4 as a decimal number. This "inch" system brings a result approximately 1.5 times the length of the diagonal of the sensor.
Image Sensor Formats - Machine Vision Direct
Machine Vision Direct
https://machinevisiondirect.com › pages › image-sensor-f...
Machine Vision Direct
https://machinevisiondirect.com › pages › image-sensor-f...
What is the difference between 1 2.5 and 1 2.8 sensor?
Strengths of 1/2.5″ Sensors:
Slightly Better Low-Light Performance: With a slightly larger surface area than the 1/2.8″ sensor, the 1/2.5″ sensor captures more light, improving low-light performance and reducing noise.Oct 14, 2024
Slightly Better Low-Light Performance: With a slightly larger surface area than the 1/2.8″ sensor, the 1/2.5″ sensor captures more light, improving low-light performance and reducing noise.Oct 14, 2024
Comparing Camera Sensors in PTZ Cameras: 1/1.5″, 1/1.7″, 1/1.8
Streaming Valley
https://www.streamingvalley.nl › comparing-camera-sens...
Streaming Valley
https://www.streamingvalley.nl › comparing-camera-sens...
Web results
8MP 1/2.5 Inch Lens with Low Distortion for CCTV Security
Alibaba.com
https://www.alibaba.com › ... › CCTV Lenses
Alibaba.com
https://www.alibaba.com › ... › CCTV Lenses
Shop our 1/2.5 Inch Lens 8mp M12 Mount Macro Board Lens Low Distortion 2.9mm CCTV Lens for CCTV Security IP Cameras. Enjoy auto focus, 103/95/61 degree ...
F1.6 M12-Mount Fixed Focal MP 1/2.5inch Lens Arecont 6mm
BLVS.com
https://blvs.com › products › cctv › cameras › lenses › m...
BLVS.com
https://blvs.com › products › cctv › cameras › lenses › m...
Technical Specifications ; Focal Length. 6.0mm. Optical Format. 1/2.5" ; Lens Mount. M12. Aperture. F1.6 ; Lens Type. Fixed. Dimension. ø 14 (0.55") x 17.7mm (0.69 ...
What are the pros and cons of a 1/2.5 inch image sensor in ...
Quora
3 answers · 7 years ago
Quora
3 answers · 7 years ago
What are the pros and cons of a 1/2.5 inch image sensor in a video camera?
3 answers · Top answer: A tiny sensor like a 1/2.5″ chip has the advantage of allowing a very long, fast zoom lens ...
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Web results
No Distortion of The Lens, High-Definition Wide-Angle Lens
Made-in-China.com
https://www.made-in-china.com › ... › CCTV Camera
Made-in-China.com
https://www.made-in-china.com › ... › CCTV Camera
This lens features: 1. Defined 300W pixels, high definition. 2.100 degree ultra wide angle, distortion is less than 0.3%. 3. Standard M12 interface, easy to ...
1/2.5" Format S-Mount (M12) Lenses - Optics Online
optics-online.com
https://www.optics-online.com › dsl_1_2.5.asp
optics-online.com
https://www.optics-online.com › dsl_1_2.5.asp
A 1/2.5" format imager such as Aptina MT9P001 has an imaging diagonal of 7.12mm. This is a popular format for high performance imaging applications.Read more
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