Arduino camera

I did not see this topic, so I will start it. Don’t blame me if my topic exists or it is in wrong place.

Does Arduino camera exist or no?

I have seen on Google pictures( and some links(,d.cGU), but did not see it on link.

Please give any ideas where to find it.
Amazon, eBay and other same type of shops are not accepted… I don’t trust them due to quality of products!

If there is no Arduino camera… is there any shields, so I can connect digital camera to Arduino through the special camera shield?

And also if any one of You, had experience to connect digital cameras to Arduino… Is there any circuit diagrams of connecting?