Handy FOV/Viewing Angle chart

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Thixotropic
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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 | 1KVA UPS
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TimG
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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 v5.3.2.8 | Win10 x64 version 2004 | Dahua IPC-HDW5231R-ZE, Foscam R2, Ertech 4MP, 2 analogue cameras on Euresys Picolo Pro 2 | Intel i5-3330 CPU, 16GB Ram, Multiple SSD and HD | TVMosaic.
MikeBwca
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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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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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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.
Bernie228
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Re: Handy FOV/Viewing Angle chart

Post by Bernie228 » Wed Aug 26, 2020 1:50 pm

Matts1984 wrote:
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.
The only choice is to use manufacturer's specifications or calculators with built-in database of camera models where there are angles from camera manufacturers.
JVSG tool has a database of camera models with specified angles.
So you get angles like 119 for Hanwha XNV 6080
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