What type of Camera and Lens can take photos at this distance?

When that paparazzi photographer took them holiday shots of Kate Middleton topless on holiday at the Chateau d'Autet, what camera can take photos THAT far away.

Here is an image that shows this distance were talking about and it's an incredible distance for such clear photos:

I would love to own a camera that is this powerful but I didn't think they existed until I recently read this story. I imagine they will be expensive but I would be very grateful if someone could source me a lens that could do this. I own a Nikon D300S SLR.

Any camera will do, you just need a very long lens. Normally telephoto lenses go up to about 500mm, but you can get 3000mm lenses that will really bring the distance up close. They're very expensive though!

Use a telescope with a Nikon mount adapter.

Your telephoto is going to be the size of a high-power telescope---that's why they're not particularly proper to use in situations where someone has a reasonable expectation of privacy.
You would be paying perhaps $100K, probably more, in just lens. That's a lot of glass. Nikon's lenses are fairly universal, so chances are they'd fit any D platform.
But count on adjusting this thing by hand regardless.
Here's a Canon model, $120, 000.http://www.bhphotovideo.com/c/find/newsLetter/Mother-of-All-L-Lenses.jsp
Good luck with that. Might want to make a name for yourself and have the Enquirer but it for you.
Anyway, sweet camera you have there.

Paparazzi photographers typcially use Nikon or Canon cameras. When thy have to reachout, they use one of the cropped sensor cameras or shoot in the 1.5x or 2.3x mode using a Nikon D4 or similar camera.

No one I know make enough money to justify buying either the Nikkor 800 mm f/5.6 ($17, 900 with a special 1.25x teleconverter) or Canon 800 mm f/5.6 lenses $15, 000 with no teleconverter), so what you are probably seeing was shot through a telescope (1000 mm costs about $400 with adapter and tripod)

Your Nikon D300s would be perfect to use with a telescope.

Probably a relatively expensive digital camera with like a 42X optical lense plus a 4X digital expander. Altogether a magnification of 168 which translates to being able to read the license plate off a car from 10, 000 ft up. It's just the detail isn't to good.

You already have the right camera. Choose here the right lens.

http://www.bhphotovideo.com/...rtclk=sort