There are already a few of these but I wanted to post my own version as im rather happy with my results! :)
The great thing about this project is that you can make it as long/short as you yourself require (longer tube=closer macro) AND it will fit with any lens made for the canon EOS series! :)
one thing to note, if you make a long tube it will allow you to take photos SUPERCLOSE, but your "focus-range" will be minimal, meaning that if the object your taking a picture of has any curves, only a tiny portion will be in focusPictures: http://i.imgur.com/RVrQpgG.jpg http://i.imgur.com/9VlU3tZ.jpg http://i.imgur.com/CF0IQI3.jpg http://i.imgur.com/8w8DIw1.jpgThings you will need!!
Cover for your DSLR Body
Cover for your DSLR lens, as in socketcover.
A tube of some sort, I used a roll that used to have giftrope on it (anything that dosent let through light can work)
A hot glue gun
A dremel or other tool for making holes in your covers
a bottle or other tube to fit over the "lens-extension" to make it prettier :)