You can also copy the results and images to the clipboard. These are called fixed lenses and varifocal lenses. Understanding cctv lenses clearview communications. Networked surveillance system design guide choosing network cameras 8 fig 7. A cctv system serves mainly as a security force multiplier, providing surveillance for a larger area, more of the time, than would be feasible with security personnel alone. How to calculate lens requirements ip cameras cctv. Most cctv applications use a fixedfocallength ffl lens, which, like your eyes lens, covers a constant angular field of view fov. It can also be referred to as the angle of view or the angular field of view. Cctv design lens calculator free download windows version. Black art of massaging the merit function optimize for. How to calculate object detail level based on field of. Lens curvature, width, position, type of glass some can be fixed, other vary with focal length, focus e. Cctv design lens calculator is an easy free tool for cctv design. When the value is out of range, the fields will become yellow.
Cctv systems provide surveillance capabilities used in the protection of people, assets, and systems. There are a number of good on line lens calculators but while they do the same result as the lens wheel above, they still do not factor in the cameras installation height or tilt, which are needed for a more accurate calculation. Security camera lenses box cctv camera lens varifocal. Cctv lens calculator simulator choosing the correct lenses for your security cameras is an important aspect of designing an effective video surveillance system. It offers standard functions of lens calculators calculation of the fieldofview size depending on the distance and the lens focal length as well as several new, more effective tools. The field of view or fov is the total height and width of the view seen through the cctv security camera lens.
Please define your desired specifiacation below and we will filter our selection to show you suitable lens models. Zavio hard drive calculator allows users to calculate the hard drive space required and internet connection speed required for zavio ip cameras. Cctv lens calculator allows to export the results of calculation and models of images as screenshots in formats. Typically the goal is to cover a wide area without an emphasis on detail. Lens calculator for cctv design cctvsecuritycamera.
Cctv camera lens calculator the function of the camera lens is to collect light reflected from the scene and focus it into an image onto the cctv camera sensor. Calculating camera sensor resolution and lens focal length. The lens focal length and the image sensor size determine the cameras fov. How to calculate your cctv lens requirements ask the. How to calculate your cctv lens requirements here is a stepbystep guide on how to calculate your cctv lens requirements. Security cameras utilize two basic lens types based on focusing parameters. The calculated tables can be simply pasted directly into a spreadsheet or word processor or printed for a permanent record.
We use 4mm cameras under eave or on the way to cover a small area like an entrance, a back door, a corner of your yard or deck. This is not a common lens focal length so either the working distance would need to be adjusted or a nonstandard lens that allows the user to vary the focal length is required. The angular field of view is stated in horizontal and vertical degrees. In a cctv camera, the imaging element has a rectangular sensor area the image size that detects the image produced within the image circle.
A security camera lens size determines the field of surveillance view and zoom level that the camera provides. Along with the traditional feature of many lens calculators calculation of the angle of view and fieldofview size depending on the distance and the lens focal length, this cctv lens calculator offers several new, more effective tools. Cctv camera lens, distance, angles and coverages cctv. Correctly designed lighting can make a significant impact on the performance and effectiveness of the cctv system, ensuring the system works day and night.
The field of view calculator or fov is used to help predetermine proper lens selection prior to installation. Choosing the correct lens size for any application is vital, this calculator shows. Fixed lenses have a fixed focal length while varifocal lenses have a focal length that can vary. It helps you choose the most suitable lenses, heights, and locations for camera installation as per the required parameters of view areas. Choose the size of the ccd you will be working with. On field of view and lens focal length tab you can use builtin lens calculator to calculate the cctv lens focal length, camera field of view, pixel density at. Design a cctv project to this type of client usually involves time and dedication, because most of the time you will compete with several other companies that just like also sell cctv surveillance systems a corporate client will in most cases pay for a welldesigned cctv project with higher cost project because they have a need for a high quality cctv system and are willing to pay for the.
A simplified calculation for 14inch cctv lens can be made using the following formula. The computar range calculator is simple device to use for estimating focal length, object dimension and angle of view, alternatively the vm300 view finder gives an optical way of finding focal length. Image sensor and lens dimensions zoom cameras fig 8. Feel free to use the cctv field of view calculator above for your own calculations. One such wheel lens calculator is shown bellow and the procedure to use this is pretty simple. Enter your measurements in columns 1 and 2 result will be displayed in column 3. If you are unable to connect, please contact your network administrator and request that those addresses be whitelisted. This is where a 3d drawing software is the preferred option.
Cctv lens calculator advanced free lens calculator for cctv. Focal length each lens model has a range of focal length. Cctv security camera lenses, box cctv camera lens cctv camera pros a wide variety of security camera lenses for cctv cameras. Despair no longer, as our intuitive cctv lens calculator will help you bring everything you need into perspective. The lens calculator is a basic guide and can be used when using any ccd sizes, such as 14 inch, inch which are the typical ccd sizes used in the cctv industry. Cctv design lens calculator free download for windows 10. Cctv calculator is a tool designated for camera system basic parameters determination and testing.
Calculate lens millimeter selection according to area size the field of view calculator or fov is used to help predetermine proper lens selection prior to installation. The camera lenses that cctv camera pros supplies generally range from 2. This lens calculator displays the angle of view of common cctv lenses. By adjusting the parameters below you can visualize the effects of different. Cctv lens calculator advanced free lens calculator for. Technical information megapixel lens for megapixel camera to capture the full resolution of a megapixel camera, it is essential to use a high quality megapixel lens. Click to watch a video that compares different cctv lens sizes and click here to view a cctv camera lens chart to compare the field of view of different. Enter the ccd chip size, lens size, and distance to object. The width and height of the sensor will determine the field of view, and will be used to calculate the crop factor. Cctv operational requirements manual, published by hosdb in 2006.
In cctv field of view depends on a number of factors such as the sensor format, the focal length of a lens, and the distance from the objects. Most cctv applications use a fixedfocallength lens, which, like your eyes lens, covers a constant angular field of view. It enables easy calculation of an appropriate lens focal length, camera viewing angle, ip camera bandwith, storage capacity for records archiving and of other camera system parameters. Security camera field of view calculator security camera. Lenses are manufactured with a limited number of standard focal lengths. If you require any further assistance in specifying your criteria or need additional information please contact us. In an effort to guide your decision, we have created this handy cctv lens calculator and view simulator.
A more familiar term used for electric powered varifocal lenses is a zoom lens. Estimate the distance from the camera to the scene. Cctv security camera lens calculator and view simulator. The complete guide to cctv lighting covers all of these challenges in detail to increase the understanding and appropriate use of lighting. This lens calculator displays the viewing angle and the focal distance for cctv lenses. Zoom camera a zoom camera is a special type of box camera that includes an optical and mechanical zooming device.
Lenscalc is a universal tool designed to eliminate the frequent errors, misreadings and interpolation problems from using traditional lens calculators. Focal length adjusted without focus shift of image plane. Cctv lens field of view calculator the function of the lens is to collect light reflected from the scene and focus it into an image onto the cctv camera sensor. In the case of the later, a specific detail level measured in pixels must be calculated for. Software for cctv systems design milan adamek 1,a michaela barinov a and tomas havir 1 1 tomas bata university in zlin, faculty of applied informatics, nam. Cctv design lens calculator can calculate the angle of view and fieldofview size based on the distance and the focal length of the lens. These are the standard ccd sizes used in cctv and security applications. The larger the size of the lens, the more narrow and zoomed in the field of view is.
This is a cctv lens guide to help our customers when purchasing their cctv cameras. Set the basic parameters, filed of view parameters, and range of view parameters as you desired. The ratio of the length of the horizontal to vertical sides of a video image is. Camera movement is not available once installed, but its zoom capability provides zooming function to. Choosing the correct lenses for your security cameras is an important aspect of designing an effective video surveillance system. All of the lenses on this page can be used on our professional box ccvt cameras and our ip box security camera. First cctv lens calculators were wheel calculators made out of paper. Cctv lens calculator is a free useful lens calculator for cctv design.
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