I dug up an old Yashica 28mm lens and reversed it on my Tamron 90 2.8 sp and then added the Kenko MC-7 2x teleconverter also and this gave my 6:1. All the pictures are uncropped except for the one that says cropped. I used the SB-800 and SB-600 in wireless ttl also a small lamp to give enough light to focus
http://forums.dpreview.com/forums/read.asp?forum=1034&message=12461272
