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Changing Camera Resolution Query

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Thread starter #1
Hi All,

I have a two Hikvision 4K turrent cameras which I need to reduce the resolution from 4K to 1080p (for a short period).
When I alter the 2.8mm camera it updates as expected but when I alter the 4.0mm camera it appears to change the focal length. I'm not sure to what (maybe 6.0mm) but it's effectively zoomed in so I loose some important visibility (a door in this case).
I have compared the settings between both cameras and they are identical so was hoping for some assistance and clarification on what might be happening and if it's fixable.

Thank you
Brian
 

Phil

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#2
I guess that in changing the resolution you are also changing the aspect ratio; effectively making it a wider or a taller view, thereby excluding the door from the view. Although, some cameras may 'crop' the image when you downsize.

You do have some aspect ratio selection options at the bottom left of the Live View screen that might help:

1549917212288.png


I'm wondering why you need to drop the resolution?
 
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