Fotodiox 72mm Macro Reverse Mount Adapter, for Canon EOS 1D, 1DS, Mark II, III, IV, 1DC, 1DX, D30, D60, 10D, 20D, 20DA, 30D, 40D, 50D, 60D, 60DA, 5D, Mark II, Mark III, 7D, Rebel XT, XTi, XSi, T1, T1i, T2i, T3, T3i, T4, T4i, C300, C500

hi is he from digitalgoja.com here and Derek from New York asked in one of our forums how do I work with the al-tohra reversible 67 millimeter ring well Derek hopefully I'll be able to help you with this this is an incredible piece of equipment this economical adapter allows you to work with an existing lens as if it was a macro so we save orals of money that way now we're going to mount it onto the camera as if this was a lens so you line up the red dot to the dot twist and you're done there now happen to have one of the more popular lenses from Canon ef-s 18 to 135 this happens to have a 67 millimeter diameter so what we do now is switch the lens to manual focus zoom out a bit to give us a little bit of leeway and we're going to thread this on to the body so now this will be like a filter threading on now not too tight but tight enough so we don't have any mishaps remove the rear cap