IPVM Camera Calculator to better understand the tradeoffs between different Angle of Views (AoV) / focal lengths.
The video below shows you how to do it:
The two gifs below show you examples of different AoVs. First, for a doorway:
And here for a vehicle entrance:
This is especially useful when determining coverage for new cameras / projects, showing a user the tradeoffs involved.
try it yourself on the Camera Calculator now.
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