Handy FOV/Viewing Angle chart

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Thixotropic
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Joined: Wed Sep 04, 2019 7:20 pm

Handy FOV/Viewing Angle chart

Post by Thixotropic » Sun Jul 19, 2020 1:49 am

This might come in handy for planning purposes - a chart that shows you the coverage area for various focal lengths, viewing angles, and distances.
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angle-fov.jpg
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Blue Iris 5.x x64 | Windows 10 Pro x64 | 16GB RAM | i7-7700 3.6 GHz | 1TB HDD | 2TB RAID NAS | 8 Cameras | Dual NIC | Ngrok Tunneling
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TimG
Posts: 618
Joined: Tue Jun 18, 2019 10:45 am
Location: Nottinghamshire, UK.

Re: Handy FOV/Viewing Angle chart

Post by TimG » Sun Jul 19, 2020 9:22 am

For BI newbies, are you aware of this website ? https://calculator.ipvm.com/

Change location, add a camera, and it's play time :mrgreen:
Blue Iris v5.3.1.5 | Win10 x64 version 2004 | Dahua IPC-HDW5231R-ZE, Foscam R2, Ertech 4MP, 2 analogue cameras on Euresys Picolo Pro 2 | Intel i5-3330 CPU, 8GB Ram, Multiple SSD and HD | TVMosaic.
MikeBwca
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Joined: Thu Jun 20, 2019 5:39 am

Re: Handy FOV/Viewing Angle chart

Post by MikeBwca » Mon Jul 20, 2020 2:35 am

In the past, I went to google maps to bring up my yard. Then used a protractor on the screen to figure the angles and distance!
Matts1984
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Joined: Fri Apr 10, 2020 1:12 pm
Location: Maryland, USA

Re: Handy FOV/Viewing Angle chart

Post by Matts1984 » Mon Jul 20, 2020 2:37 pm

Wow this is pretty cool stuff I didn't know existed. I recently used Google Maps and compared the actual image of my camera to map my viewable zones and find my blind spots I wanted to cover. One of my specific cameras isn't listed on the site but I can get pretty close.
Bernie228
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Joined: Fri Jul 31, 2020 2:26 pm

Re: Handy FOV/Viewing Angle chart

Post by Bernie228 » Fri Jul 31, 2020 2:54 pm

Thixotropic wrote:
Sun Jul 19, 2020 1:49 am
This might come in handy for planning purposes - a chart that shows you the coverage area for various focal lengths, viewing angles, and distances.
It would be great to have a table. But I am not sure about focal length < 4 mm and wide angle cameras.
For Hanwha Techwin XNV-6080 2.8mm - the horizontal angle is 119. In the chart above is 109.
For example for Hikvision AE-V122T-IT(S) 2.1mm the angle is 121. In the chart is 128.
Last edited by Bernie228 on Fri Jul 31, 2020 2:59 pm, edited 1 time in total.
Matts1984
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Location: Maryland, USA

Re: Handy FOV/Viewing Angle chart

Post by Matts1984 » Mon Aug 03, 2020 2:34 pm

I wonder if its a difference in advertised viewing angle vs actual. Some of mine are shown as having a measly 70* but in reality it's more than that. It would take a lot of research and testing to get that level of info on each camera though sooooo, maybe I'm just blowing smoke.
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