thanks for the comments
this just seems wrong
in your home you should have the assumption of privacy
even if you are in front of your windows, there should be limits to what people can do on purpose
if some 65 year old dirtbag is taking photos of the young teenage girl next door in her living room, it doesn’t seem right
“Limits” of the kind you mentioned for which groups? All, or only some? Something to think about, perhaps? See demographics in crime stories in the news (teenage girls, teachers, police, CEOs, politicians, priests,...all kinds). We’re near anarchy, as the situation is.
I’ll put it this way. It seems that determining purpose could be yet another lawyer’s dream—a mess in many cases and another drain on the economy. Such a law would apply to everyone including teenagers. And what about beaches?
The mention of “telephoto lens” in the article along with a search of statutes in your state might be of some help. It could be difficult to catch someone taking such pictures, though, examples being private investigators or people who post pictures to creepy web sites. Home security measures might be the most effective way to deal with it (tinted windows, curtains, tactical lighting, outfacing security cameras, etc.).