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Lenscalc is a universal tool designed to eliminate the frequent errors, mis-readings and interpolation problems from using traditional lens calculators. The calculated tables can be simply pasted directly into a spreadsheet or word processor or printed for a permanent record.
Currently there are many online CCTV lens calculators for web browsers. Such online tools can help to calculate lens focal length, field of view and even pixel density. Here is a modern lens calculator with 3D functions and more than 9000 cameras in the built-in database.
This lens calculator displays the viewing angle and the focal distance for CCTV lenses. The lens calculator is a basic guide and can be used when using any CCD sizes, such as 1/4 inch, 1/3 inch which are the typical CCD sizes used in the CCTV industry.
CCTV Lens Calculator can correctly calculate all possible camera positions not only the standard one. Calculate values of pixel density (spatial resolution) at specified distances for panoramic (fish-eye) cameras. Choose optimal camera resolution for any specific tasks.
18 sty 2021 · These calculations appear to use the simplified h=f*tan(Theta) equation. As you've mentioned, this doesn't work for fisheye lenses. I would extend this comment to include any wide-angle lenses with distortion, such as 2.8mm~4mm lenses.
Lens Calculator is a free online tool for CCTV design. It allows you to select a video surveillance camera’s characteristics for the different operator’s tasks, such as detection, observation, recognition, and identification.
This handy field of view calculator will help you in determining which lens is right for your application. Simply enter the distance to the object, camera format, and focal length of the lens. Click "Calculate" to see the field of view you can expect with that lens. It also works in reverse.
