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Handy FOV/Viewing Angle chart

Posted: Sun Jul 19, 2020 1:49 am
by Thixotropic
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
angle-fov.jpg (245.85 KiB) Viewed 1061 times

Re: Handy FOV/Viewing Angle chart

Posted: Sun Jul 19, 2020 9:22 am
by TimG
For BI newbies, are you aware of this website ? https://calculator.ipvm.com/

Change location, add a camera, and it's play time :mrgreen:

Re: Handy FOV/Viewing Angle chart

Posted: Mon Jul 20, 2020 2:35 am
by MikeBwca
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!

Re: Handy FOV/Viewing Angle chart

Posted: Mon Jul 20, 2020 2:37 pm
by Matts1984
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.

Re: Handy FOV/Viewing Angle chart

Posted: Fri Jul 31, 2020 2:54 pm
by Bernie228
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.

Re: Handy FOV/Viewing Angle chart

Posted: Mon Aug 03, 2020 2:34 pm
by Matts1984
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.

Re: Handy FOV/Viewing Angle chart

Posted: Wed Aug 26, 2020 1:50 pm
by Bernie228
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