There is nothing keeping me from using my PTZ to look into windows other than the law and my wanting to be a proper person.So and your PTZ can only watch street and when zooming into windows a miracle privacy mask appears ?
One install PTZ , watching street, sees boobies when playing around, take manual control and zooms in.
Apple and oranges ?
Even worser when having kids and a pervert has a PTZ. What can you do ?
Like already said here. Fixed cam with 3.6/2.8mm cannot see much. Even varifocal is pointing to one direction, so you can see what area it records.
But PTZ with 25x zoom ?
There is nothing keeping me from pointing a fixed cam into a neighbors house window other than the law and my wanting to be a proper person.
There is nothing keeping me from attaching a camera to my neighbor's window and looking inside their house other than the law and my wanting to be a proper person.
There is nothing keeping me from using binoculars and looking into my neighbor's windows.
There is nothing keeping me from crossing the painted line in the middle of the road and going head on into other traffic.
There is nothing keeping me from crossing the center of the road, where no painted line is present, and going head on into other traffic.
At some point you need to accept the fact that not doing bad things is what makes a proper person a proper person and there are people that will not follow these laws or guidelines.
You can have anti-voyeurism and anti-peeping tom laws, but they will not stop someone. The law is only there to justify and apply the punishment of the action.
However, if I can readily see inside of a building from a place that is accessible to the public, then there is no expectation of privacy. If I come up to the window, on your property, and look through a small opening in the curtains then this is different. BUT I would argue that there is a line where expectation of privacy is also reasonable. An example would be the FOV into your second floor window from the sidewalk vs my roof mounted PTZ. You have the expectation that the upper windows can only be seen from a certain angle and could argue that viewing from a higher elevation would violate that expectation.