Edward McArdle wrote:
This is actually the opposite of the question asked, but nowadays it is
possible to take a picture almost anywhere without anyone noticing.
There are places where you are forbidden to take photos (eg. with anything
over a 200mm lens at the Australian Open tennis), but it is simple to
break the rule.

Try selling sich photos to a sports magazine. :-)

I have a small camera with a 5-100mm lens. As it is not
35mm, this is actually a 28 - 560 mm equivalent.

It is, however, actually a 5-100mm lens, and thus *not*
over 200mm.
And you said the rule was against anything "over a 200mm lens"
not "over a lens equivalent to 200mm on FF", so there.

It is also forbidden to take videos at all - but almost any camera today
will take video.
And if you have a 20 megapixel camera, you can take a photo and blow up
that little bit in the middle.

Yep, if you blow it up by a meagre factor of 1.5 --- equivalent
to using a mere 300mm lens instead a 200mm lens --- you're
left with only 9 MPix. You're much much better off using a
2x teleconverter and/or a tiny sensor with high pixel pitch
in first place-

And you don't have to put a camera up to your eye to take a picture.

You never had to!

-Wolfgang