Shutters don't work unless you have a very high vantage point. Consider the most forgiving camera I have--pointing west from not very far from the east edge of my property, it's angled such that the top of the frame is horizontal and the edge of the frame is parallel to the house. The maximum range I would realistically want to see a face is about halfway across my property from the location of the camera. Put a shutter to cut off the neighbor and I also cut off the head of someone approaching my front door. To make it work the camera would need to be at least 12' in the air--which would mean fastening it to air.
Fancier cameras can have filters on the motion sensor (which I wish I had--mine wasted too much recording time on the wind moving a tree), but you can't exclude the area.
I think there's an exception for dashcams. Might still be illegal to publish recordings. Not sure.
You can put shutters on a camera so it can't see off your property.
Also you have to tell people they're entering a video surveilled area before they enter that area. Or else you go to prison.