something like this shown in the picture but it can move up down left right
Do you mean more like a right angle viewfinder?
If yes, you can get it here
Take the shot!
why not move this thread to Nikon discussion sub-section ..... sure got Nikonians who can help
I've never seen this kind of extender..
if you are talking about right angle finder then most shops should have/be able to bring in for you.