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What is the focal point and the focal length?
The focal point is the point at which light rays parallel to the optical axis converge after passing through a lens or reflecting off a concave mirror. It is the point where the image of an object is formed. The focal length is the distance between the focal point and the optical center of the lens or mirror. It is a measure of how strongly the lens or mirror converges or diverges light. **
Which 50mm fixed focal length?
The 50mm fixed focal length lens is a popular choice among photographers for its versatility and ability to capture images with a natural perspective similar to the human eye. There are various 50mm lenses available from different camera manufacturers, such as Canon, Nikon, Sony, and Sigma, each offering unique features and image quality. It is important to consider factors like aperture size, build quality, and compatibility with your camera system when choosing the right 50mm lens for your photography needs. **
Similar search terms for Focal-JMlab-HikVision-4MP-Exir
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Products related to Focal-JMlab-HikVision-4MP-Exir:
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Synology CC400W 4MP Outdoor Wi-Fi Night Vision Security CameraAI-powered Wi-Fi camera for integrated smart surveillance Flexible monitoring for any space Supercharging security with powerful AI tools Streamlining management with intuitive integrations Maximizing security without sacrificing privacy Flexible monitoring for any space Compact, wide-angle, WiFi-connected camera for protecting any space. Mount anywhere with Wi-Fi 4MP & 125° wide FoV Integrated 2-way audio IP65 weatherproofing Crystal clear footage, in all lighting conditions High Dynam183,49 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook IPC-D140HA(2.8mm) 4MP MD 2.0 Fixed Dome Network CameraThe HiLook IPC-D140HA is a 4MP IP turret camera with a 2.8mm fixed lens and smart Motion 2.0 human and vehicle detection. It features efficient H.265+ compression technology and PoE (Power over Ethernet) which allows both data and power to be sent over a single ethernet cable, making installation quicker and easier. DWDR (Digital Wide Dynamic Range) provides clear imaging in strongly backlit conditions and an IP67 rating against dust and water ingress makes it ideal for outdoor use. In addition, the IPC-T250H-MU also features Infrared sensors that provide clear imaging in complete darkness, up to 30 metres. Please note: When installing any HiLook dome camera, please be aware that it's 2 axis adjustment only allows for installation horizontally on a ceiling or fascia. If wall mounting is required, we suggest purchasing the pendant style wall mount bracket. We recommend that dome style cameras are always mounted horizontally to minimise sun glare, and also rain droplets running down the bubble and obstructing the cameras view particularly at night when the infrared is active. Motion Detection 2.0 Hikvision has upgraded its Motion Detection with its AcuSense technology. This takes motion detection to the next level with features that distinguish human beings and vehicles from other objects in any given environment, and tools that make video searches as smart and quick as possible. The first key way that Hikvision Motion Detection 2.0 improves security is by allowing users to easily configure alerts when people or vehicles enter an environment. If an area is usually busy with visitors or pedestrians, the systems can be configured to ignore certain areas of the screen and only generate alerts if a person or vehicle enters an unauthorized zone, for example. With automated alerts for vehicles or people entering restricted areas, security teams can respond much more quickly and effectively to potential security breaches – helping to increase protection for people and assets. The second major advantage of Motion Detection 2.0 is the ability to search video footage based on the appearances of people or vehicles during a specific period of time. Users can call up and playback video clips of people and vehicles that have been recorded on back-end devices like NVRs or DVRs, with no need to pore over hours of video footage. This feature means that hours or even days of security footage can be reviewed in just a few minutes and that teams can quickly find high-quality video images of critical security breaches that have occurred. DORI - Recommended operational range of the camera DORI is a standardized system that provides a clear framework for evaluating the effectiveness of CCTV cameras. It is based on the European standard EN 62676-4, which defines specific criteria for detecting, observing, recognizing, and identifying objects or individuals within a camera's field of view. For more information on understanding the DORI metrics, please read our blog article...91,99 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook IPC-C340HA-D/W(W)(2.8mm) 4MP Indoor Network Wi-Fi CameraThe HiLook IPC-C340HA-D/W(W) is a 4 MP indoor fixed cube network camera that connects to the Wi-Fi, eliminating the need for a network connection. It features 2-way audio and human and vehicle focused intelligent deep learning. The Hik-Connect app integration allows for remote management and live viewing through the Hik-Connect cloud service and mobile application, keeping you connected to your surveillance feed from anywhere in the world. The IPC-C340HA-D/W can record onto an SD card with a max capacity of 512 GB, or be connected to a NVR like a conventional CCTV camera. Power can be supplied by a DC12 V power adapter (not included) or via PoE (Power over Ethernet) from the recorder or a PoE switch. Hikvision Cloud Storage Hikvision's convenient and secure Cloud Storage Solution backs up and stores video clips. End-users can playback or download videos from anywhere using the Hik-Connect Mobile App, even when cameras go offline or if storage devices go down. Since it's cloud-based, this solution nearly eliminates the risks of losing critical footage from stolen equipment, footage overwriting, or hard drive failure. Low risk of video loss - Videos will be stored locally during network failure and automatically uploaded to the cloud once the network recovers. Flexible subscriptions - Multiple subscription packages are offered for diverse sets of needs: 7/30-day monthly and 7/30/90/180/365-day annual. Bandwidth detection - This function helps choose optimal upload definition and channel numbers based on available bandwidth. Access videos flexibly - With videos securely stored on the cloud, end-users can access their footage from anywhere and at any time they want. 678e753dc53a9_cloud-storage-landing-page-06.png DORI - Recommended operational range of the camera DORI is a standardized system that provides a clear framework for evaluating the effectiveness of CCTV cameras. It is based on the European standard EN 62676-4, which defines specific criteria for detecting, observing, recognizing, and identifying objects or individuals within a camera's field of view. For more information on understanding the DORI metrics, please read our blog article here. The DORI specifications for this camera are: Detection: 56m, Observation: 22.2m, Recognition: 11.2m, Identification: 5.6m Features: High quality imaging with 4 MP resolution Clear imaging against strong backlight due to Digital WDR technology Focus on human and vehicle classification based on deep learning Provide real-time security via built-in two-way audio Hik-Connect cloud service and app for remote management and views of devices57,49 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook PT-N2C400I-W(W)(2.8mm) 4MP IR Wi-Fi PT Network CameraThe HiLook PT-N2C400I-W(W) is a 4MP smart pan & tilt Wi-Fi camera with a 2.8mm lens and a built-in microphone & speaker for real time audio security. It features Human Detection, Vehicle Detection and can automatically lock on and follow human movements to record important moments. EXIR 2.0, advanced infrared technology allows for clear night-time imaging up to 30 metres, and the powerful external antenna provides a strong Wi-Fi connection. Hikvision Cloud Storage Cloud-based solutions have quickly come into focus in many industries, and video security is no exception. Video Security as a Service, or VSaaS, is the technology that hosts the hardware and software of video-based security systems in the cloud, so that users can access their IP cameras anywhere they might be through any device and have video footage at their fingertips. Since there is no hassle of on-site server installation and system configuration, VSaaS is an ideal choice for small- and medium-sized businesses (SMB). It is more cost-effective than traditional video security solutions since users can spread costs out over the contract term and pay only for the services that are actually used. Hikvision’s VSaaS makes it possible that disparate devices interact with each other as a convergent system. This enables them to perform specific tasks according to pre-defined linkage rules, for example, an intrusion event detected by the alarm system could trigger push-notice with video footage, and simultaneously close specific doors, as well as sound the siren. Features: High quality imaging with 4 MP resolution Support Human Detection, Vehicle Detection, and Auto-tracking Lite EXIR 2.0, advanced infrared technology with long IR distance Hik-Connect cloud service and app for remote management and views of devices Built-in microphone and speaker for real-time audio security Built-in memory card slot, support microSD/SDHC/SDXC card, up to 512 GB Water and dust resistant (IP66) Hik-Connect cloud service and app for remote management and views of devices76,49 £*Shipping: 0,00 £Secure redirect to the provider
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What is a focal headache?
A focal headache is a type of headache that is localized to a specific area of the head. It typically occurs on one side of the head and can be described as a sharp, stabbing pain. Focal headaches can be caused by various factors such as tension, migraines, or cluster headaches. It is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment. **
-
What focal length for Deep Sky?
For deep sky astrophotography, a focal length of around 400-800mm is generally recommended. This range allows you to capture detailed images of galaxies, nebulae, and star clusters while still maintaining a wide enough field of view to include surrounding stars and celestial objects. A longer focal length can help bring out more details in distant objects, but may also make framing and tracking more challenging. Ultimately, the best focal length will depend on the specific objects you want to capture and your equipment setup. **
-
Which focal length do I need?
The focal length you need depends on the type of photography you are interested in. For portraits and close-up shots, a focal length between 50mm to 85mm is ideal. For landscapes and architecture, a wider focal length such as 24mm to 35mm is recommended. If you are looking for a versatile option, a zoom lens with a focal length range of 24-70mm or 70-200mm can cover a wide range of shooting scenarios. Ultimately, it is important to consider your shooting style and preferences when choosing the right focal length for your needs. **
-
What focal length do I need?
The focal length you need depends on the specific requirements of your photography or videography project. For example, if you are shooting landscapes or architecture, a wide-angle lens with a focal length of 16-35mm may be suitable. For portraits, a focal length of 85mm or 50mm is often preferred to achieve a flattering perspective. If you are shooting wildlife or sports, a telephoto lens with a focal length of 200mm or more may be necessary to capture distant subjects. Consider the specific subject matter and shooting conditions to determine the appropriate focal length for your needs. **
What is the focal length 2?
The focal length 2 is a measurement that refers to the distance between the lens and the image sensor when the lens is focused at infinity. It is a key parameter in determining the field of view and magnification of a lens. A shorter focal length 2 results in a wider field of view and greater depth of field, while a longer focal length 2 provides a narrower field of view and higher magnification. **
What is the lowest focal length?
The lowest focal length refers to the shortest distance at which a lens can focus light onto the camera's sensor or film. This is typically found in wide-angle lenses, and the lowest focal length is usually around 14mm for most DSLR and mirrorless cameras. Lenses with lower focal lengths can capture a wider field of view, making them ideal for landscape, architecture, and interior photography. **
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Products related to Focal-JMlab-HikVision-4MP-Exir:
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Focal-JMlab HikVision 4MP Exir Vari-Focal Dome Network Camera - Weatherproof, HD Video, H.265+, 2.8-12mm Lens, Used - Like NewStep into professional-grade surveillance with the HikVision 4MP EXIR Vari-Focal Dome Network Camera , a powerful CCTV solution engineered for high-performance security monitoring. Designed for both commercial and residential use, this advanced dome camera delivers crystal-clear HD video, intelligent compression, and flexible viewing angles—making it a reliable alternative to traditional CCTV systems. ✔️ 4MP HD Resolution – Capture sharp, detailed footage with high clarity for accurate monitoring and evidence ✔️ 2.8–12mm Motorized Varifocal Lens – Adjustable zoom and focus for flexible coverage, from wide-angle to detailed close-ups ✔️ EXIR Infrared Night Vision – Advanced IR technology for clear visibility even in complete darkness, with extended range ✔️ H.265+ Compression – Efficient video storage and bandwidth usage without compromising image quality ✔️ Wide Dynamic Range (WDR) – Balanced exposure in bright and dark areas for clear images in challenging lighting conditions ✔️ Weatherproof & Vandal-Resistant – IP67-rated for outdoor use and IK10-rated for impact protection ✔️ Smart Detection Features – Advanced analytics for motion detection and human/vehicle classification (select models) ✔️ Flexible Installation – Dome design with adjustable angles for ceiling or wall mounting ✔️ Local Storage Support – Compatible with microSD cards (up to 256GB) for onboard recording ✔️ Power Options – Supports PoE (Power over Ethernet) or 12V DC for simplified installation The HikVision 4MP EXIR Vari-Focal Dome Network Camera is built for users who need reliable, high-quality surveillance with advanced features and flexibility. Whether you're securing a shop, office, or home, this camera offers powerful performance, smart monitoring capabilities, and durable construction—ensuring peace of mind with professional-level security.167,99 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook PTZ-N2D400M-DE/14(2.8/8mm TandemVu 4MP+4MP Fixed Lens POE PT CameraThe HiLook PTZ-N2D400M-DE/14 is a PTZ camera that incorporates both a wide-angle bullet camera and a powerful PTZ camera to offer the best of both worlds and cover a much larger area than a conventional camera. This exciting new type of camera provides wide view and small details at the same time. The overall view remains even during the pan, tilt, and zoom manoeuvres, so that users will see everything and not miss any detail. The PTZ-N2D400M-DE/14 features human detection and auto-tracking, as well as smart hybrid light that provides full colour imaging, even in complete darkness. 2-way audio is available through the integrated microphone and speaker, and video files can either be saved to a hard drive in an NVR, to an SD card up to 512GB, or to the Hik-Connect cloud service. Hikvision Cloud Storage Cloud-based solutions have quickly come into focus in many industries, and video security is no exception. Video Security as a Service, or VSaaS, is the technology that hosts the hardware and software of video-based security systems in the cloud, so that users can access their IP cameras anywhere they might be through any device and have video footage at their fingertips. Since there is no hassle of on-site server installation and system configuration, VSaaS is an ideal choice for small- and medium-sized businesses (SMB). It is more cost-effective than traditional video security solutions since users can spread costs out over the contract term and pay only for the services that are actually used. Hikvision’s VSaaS makes it possible that disparate devices interact with each other as a convergent system. This enables them to perform specific tasks according to pre-defined linkage rules, for example, an intrusion event detected by the alarm system could trigger push-notice with video footage, and simultaneously close specific doors, as well as sound the siren. Features: High quality imaging with 4 MP resolution Support Human Detection and Auto-tracking Lite Smart Hybrid Light: advanced technology with long range Hik-Connect cloud service and app for remote management and views of devices Built-in microphone and speaker for real-time audio security Built-in memory card slot, support microSD/SDHC/SDXC card, up to 512 GB Water and dust resistant IP66161,49 £*Shipping: 0,00 £Secure redirect to the provider
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Synology CC400W 4MP Outdoor Wi-Fi Night Vision Security CameraAI-powered Wi-Fi camera for integrated smart surveillance Flexible monitoring for any space Supercharging security with powerful AI tools Streamlining management with intuitive integrations Maximizing security without sacrificing privacy Flexible monitoring for any space Compact, wide-angle, WiFi-connected camera for protecting any space. Mount anywhere with Wi-Fi 4MP & 125° wide FoV Integrated 2-way audio IP65 weatherproofing Crystal clear footage, in all lighting conditions High Dynam183,49 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook IPC-D140HA(2.8mm) 4MP MD 2.0 Fixed Dome Network CameraThe HiLook IPC-D140HA is a 4MP IP turret camera with a 2.8mm fixed lens and smart Motion 2.0 human and vehicle detection. It features efficient H.265+ compression technology and PoE (Power over Ethernet) which allows both data and power to be sent over a single ethernet cable, making installation quicker and easier. DWDR (Digital Wide Dynamic Range) provides clear imaging in strongly backlit conditions and an IP67 rating against dust and water ingress makes it ideal for outdoor use. In addition, the IPC-T250H-MU also features Infrared sensors that provide clear imaging in complete darkness, up to 30 metres. Please note: When installing any HiLook dome camera, please be aware that it's 2 axis adjustment only allows for installation horizontally on a ceiling or fascia. If wall mounting is required, we suggest purchasing the pendant style wall mount bracket. We recommend that dome style cameras are always mounted horizontally to minimise sun glare, and also rain droplets running down the bubble and obstructing the cameras view particularly at night when the infrared is active. Motion Detection 2.0 Hikvision has upgraded its Motion Detection with its AcuSense technology. This takes motion detection to the next level with features that distinguish human beings and vehicles from other objects in any given environment, and tools that make video searches as smart and quick as possible. The first key way that Hikvision Motion Detection 2.0 improves security is by allowing users to easily configure alerts when people or vehicles enter an environment. If an area is usually busy with visitors or pedestrians, the systems can be configured to ignore certain areas of the screen and only generate alerts if a person or vehicle enters an unauthorized zone, for example. With automated alerts for vehicles or people entering restricted areas, security teams can respond much more quickly and effectively to potential security breaches – helping to increase protection for people and assets. The second major advantage of Motion Detection 2.0 is the ability to search video footage based on the appearances of people or vehicles during a specific period of time. Users can call up and playback video clips of people and vehicles that have been recorded on back-end devices like NVRs or DVRs, with no need to pore over hours of video footage. This feature means that hours or even days of security footage can be reviewed in just a few minutes and that teams can quickly find high-quality video images of critical security breaches that have occurred. DORI - Recommended operational range of the camera DORI is a standardized system that provides a clear framework for evaluating the effectiveness of CCTV cameras. It is based on the European standard EN 62676-4, which defines specific criteria for detecting, observing, recognizing, and identifying objects or individuals within a camera's field of view. For more information on understanding the DORI metrics, please read our blog article...91,99 £*Shipping: 0,00 £Secure redirect to the provider
-
What is the focal point and the focal length?
The focal point is the point at which light rays parallel to the optical axis converge after passing through a lens or reflecting off a concave mirror. It is the point where the image of an object is formed. The focal length is the distance between the focal point and the optical center of the lens or mirror. It is a measure of how strongly the lens or mirror converges or diverges light. **
-
Which 50mm fixed focal length?
The 50mm fixed focal length lens is a popular choice among photographers for its versatility and ability to capture images with a natural perspective similar to the human eye. There are various 50mm lenses available from different camera manufacturers, such as Canon, Nikon, Sony, and Sigma, each offering unique features and image quality. It is important to consider factors like aperture size, build quality, and compatibility with your camera system when choosing the right 50mm lens for your photography needs. **
-
What is a focal headache?
A focal headache is a type of headache that is localized to a specific area of the head. It typically occurs on one side of the head and can be described as a sharp, stabbing pain. Focal headaches can be caused by various factors such as tension, migraines, or cluster headaches. It is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment. **
-
What focal length for Deep Sky?
For deep sky astrophotography, a focal length of around 400-800mm is generally recommended. This range allows you to capture detailed images of galaxies, nebulae, and star clusters while still maintaining a wide enough field of view to include surrounding stars and celestial objects. A longer focal length can help bring out more details in distant objects, but may also make framing and tracking more challenging. Ultimately, the best focal length will depend on the specific objects you want to capture and your equipment setup. **
Similar search terms for Focal-JMlab-HikVision-4MP-Exir
-
HiLook IPC-C340HA-D/W(W)(2.8mm) 4MP Indoor Network Wi-Fi CameraThe HiLook IPC-C340HA-D/W(W) is a 4 MP indoor fixed cube network camera that connects to the Wi-Fi, eliminating the need for a network connection. It features 2-way audio and human and vehicle focused intelligent deep learning. The Hik-Connect app integration allows for remote management and live viewing through the Hik-Connect cloud service and mobile application, keeping you connected to your surveillance feed from anywhere in the world. The IPC-C340HA-D/W can record onto an SD card with a max capacity of 512 GB, or be connected to a NVR like a conventional CCTV camera. Power can be supplied by a DC12 V power adapter (not included) or via PoE (Power over Ethernet) from the recorder or a PoE switch. Hikvision Cloud Storage Hikvision's convenient and secure Cloud Storage Solution backs up and stores video clips. End-users can playback or download videos from anywhere using the Hik-Connect Mobile App, even when cameras go offline or if storage devices go down. Since it's cloud-based, this solution nearly eliminates the risks of losing critical footage from stolen equipment, footage overwriting, or hard drive failure. Low risk of video loss - Videos will be stored locally during network failure and automatically uploaded to the cloud once the network recovers. Flexible subscriptions - Multiple subscription packages are offered for diverse sets of needs: 7/30-day monthly and 7/30/90/180/365-day annual. Bandwidth detection - This function helps choose optimal upload definition and channel numbers based on available bandwidth. Access videos flexibly - With videos securely stored on the cloud, end-users can access their footage from anywhere and at any time they want. 678e753dc53a9_cloud-storage-landing-page-06.png DORI - Recommended operational range of the camera DORI is a standardized system that provides a clear framework for evaluating the effectiveness of CCTV cameras. It is based on the European standard EN 62676-4, which defines specific criteria for detecting, observing, recognizing, and identifying objects or individuals within a camera's field of view. For more information on understanding the DORI metrics, please read our blog article here. The DORI specifications for this camera are: Detection: 56m, Observation: 22.2m, Recognition: 11.2m, Identification: 5.6m Features: High quality imaging with 4 MP resolution Clear imaging against strong backlight due to Digital WDR technology Focus on human and vehicle classification based on deep learning Provide real-time security via built-in two-way audio Hik-Connect cloud service and app for remote management and views of devices57,49 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook PT-N2C400I-W(W)(2.8mm) 4MP IR Wi-Fi PT Network CameraThe HiLook PT-N2C400I-W(W) is a 4MP smart pan & tilt Wi-Fi camera with a 2.8mm lens and a built-in microphone & speaker for real time audio security. It features Human Detection, Vehicle Detection and can automatically lock on and follow human movements to record important moments. EXIR 2.0, advanced infrared technology allows for clear night-time imaging up to 30 metres, and the powerful external antenna provides a strong Wi-Fi connection. Hikvision Cloud Storage Cloud-based solutions have quickly come into focus in many industries, and video security is no exception. Video Security as a Service, or VSaaS, is the technology that hosts the hardware and software of video-based security systems in the cloud, so that users can access their IP cameras anywhere they might be through any device and have video footage at their fingertips. Since there is no hassle of on-site server installation and system configuration, VSaaS is an ideal choice for small- and medium-sized businesses (SMB). It is more cost-effective than traditional video security solutions since users can spread costs out over the contract term and pay only for the services that are actually used. Hikvision’s VSaaS makes it possible that disparate devices interact with each other as a convergent system. This enables them to perform specific tasks according to pre-defined linkage rules, for example, an intrusion event detected by the alarm system could trigger push-notice with video footage, and simultaneously close specific doors, as well as sound the siren. Features: High quality imaging with 4 MP resolution Support Human Detection, Vehicle Detection, and Auto-tracking Lite EXIR 2.0, advanced infrared technology with long IR distance Hik-Connect cloud service and app for remote management and views of devices Built-in microphone and speaker for real-time audio security Built-in memory card slot, support microSD/SDHC/SDXC card, up to 512 GB Water and dust resistant (IP66) Hik-Connect cloud service and app for remote management and views of devices76,49 £*Shipping: 0,00 £Secure redirect to the provider
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HiLook IPC-B140HA-D/W(W)(2.8mm) 4MP Motion 2.0 Fixed Bullet Network Wi-Fi CameraThe HiLook IPC-B140HA-D/W(W) is a 4 MP bullet network camera that connects to the Wi-Fi, eliminating the need for a network connection. It features 2-way audio, human and vehicle focused intelligent deep learning, and EXIR 2.0, advanced infrared technology with long IR distance. The Hik-Connect app integration allows for remote management and live viewing through the Hik-Connect cloud service and mobile application, keeping you connected to your surveillance feed from anywhere in the world. The IPC-B140HA-D/W(W) can record onto an SD card with a max capacity of 512 GB, or be connected to a NVR like a conventional CCTV camera. Hikvision Cloud Storage Hikvision's convenient and secure Cloud Storage Solution backs up and stores video clips. End-users can playback or download videos from anywhere using the Hik-Connect Mobile App, even when cameras go offline or if storage devices go down. Since it's cloud-based, this solution nearly eliminates the risks of losing critical footage from stolen equipment, footage overwriting, or hard drive failure. Low risk of video loss - Videos will be stored locally during network failure and automatically uploaded to the cloud once the network recovers. Flexible subscriptions - Multiple subscription packages are offered for diverse sets of needs: 7/30-day monthly and 7/30/90/180/365-day annual. Bandwidth detection - This function helps choose optimal upload definition and channel numbers based on available bandwidth. Access videos flexibly - With videos securely stored on the cloud, end-users can access their footage from anywhere and at any time they want. 678e753dc53a9_cloud-storage-landing-page-06.png EXIR 2.0 The IPC-B140HA-D/W(W) comes with EXIR 2.0 technology as standard. This is designed to eliminate problems that occur with more traditional IR. By housing the IR LED's away from the camera lens the chance of IR bleeding or internal reflection is completely eliminated. This offers better IR coverage and stops insects and spiders blocking the lens when searching for the heat of the IR sensor. DORI - Recommended operational range of the camera DORI is a standardized system that provides a clear framework for evaluating the effectiveness of CCTV cameras. It is based on the European standard EN 62676-4, which defines specific criteria for detecting, observing, recognizing, and identifying objects or individuals within a camera's field of view. For more information on understanding the DORI metrics, please read our blog article here. The DORI specifications for this camera are: Detection: 63m, Observation: 25m, Recognition: 12m, Identification: 6m Features: High quality imaging with 4 MP resolution Realizing Wi-Fi connection and easy installation Provides real-time security via built-in two-way audio Focus on human and vehicle classification based on deep learning Efficient H.265 compression technology EXIR 2.0, advanced infrared technology with long IR distance Water and dust resistant (IP66) Built-in memory card...66,49 £*Shipping: 0,00 £Secure redirect to the provider
-
Which focal length do I need?
The focal length you need depends on the type of photography you are interested in. For portraits and close-up shots, a focal length between 50mm to 85mm is ideal. For landscapes and architecture, a wider focal length such as 24mm to 35mm is recommended. If you are looking for a versatile option, a zoom lens with a focal length range of 24-70mm or 70-200mm can cover a wide range of shooting scenarios. Ultimately, it is important to consider your shooting style and preferences when choosing the right focal length for your needs. **
-
What focal length do I need?
The focal length you need depends on the specific requirements of your photography or videography project. For example, if you are shooting landscapes or architecture, a wide-angle lens with a focal length of 16-35mm may be suitable. For portraits, a focal length of 85mm or 50mm is often preferred to achieve a flattering perspective. If you are shooting wildlife or sports, a telephoto lens with a focal length of 200mm or more may be necessary to capture distant subjects. Consider the specific subject matter and shooting conditions to determine the appropriate focal length for your needs. **
-
What is the focal length 2?
The focal length 2 is a measurement that refers to the distance between the lens and the image sensor when the lens is focused at infinity. It is a key parameter in determining the field of view and magnification of a lens. A shorter focal length 2 results in a wider field of view and greater depth of field, while a longer focal length 2 provides a narrower field of view and higher magnification. **
-
What is the lowest focal length?
The lowest focal length refers to the shortest distance at which a lens can focus light onto the camera's sensor or film. This is typically found in wide-angle lenses, and the lowest focal length is usually around 14mm for most DSLR and mirrorless cameras. Lenses with lower focal lengths can capture a wider field of view, making them ideal for landscape, architecture, and interior photography. **
* All prices are inclusive of VAT and, if applicable, plus shipping costs. The offer information is based on the details provided by the respective shop and is updated through automated processes. Real-time updates do not occur, so deviations can occur in individual cases. ** Note: Parts of this content were created by AI.