TTV stands for Through The Viewfinder and is a unique style of photography that uses a combination of two cameras to produce rather interesting effects.

lots of good info on this method can be found through a simple google search ::  http://www.google.com/search?hl=en&q=through+the+viewfinder+&btnG=Search

it looks like a rather complex set-up but, as the end results can be quite intriguing,  the effort would seem worth it.   if ya like the idea but don't have the cool gear to do it the real way, Fake TtV is the answer !

some textures to use for fake ttv post-processing treatments can be found here ::  http://www.flickr.com/groups/ttvdust/  -  check out a tutorial for help in figuring it all out, if necessary...

( in this tabblo, the image on the right is the one that has been altered to emulate the TTV technique )