So I actually tired it. When I use Google Images and search "Shen Hao 8x10" the first thing I get is my own picture, linked to here ( http://www.apug.org/forums/viewpost.php?p=881191 ).
When I put that picture into the tin eye it gives me zero hits.
And therein lies the drawback of tineye. It has a tiny database of known images, certainly when compared with google image search. Search didn't fail because it requires login; google found the image based on surrounding text.