Well I will probably get flamed for this but here goes: Has anyone ever devised a way to adapt a Canon MP-E 65mm macro lens for use on a Nikon camera body like the D300? I don't believe that Nikon has a lens that will provide greater than 1:1 magnification. The Canon lens will go to 5X without any tubes or other means of achieving this magnification. I suspect this will not be possible so would Kenco tubes be the best option for use with a Nikkor 105 VR lens? I would like to get to at least 3X magnification if possible. I have been acquiring my FX lenses for use with Nikon D300 and D3 bodies so I don't have resources available for getting a dedicated Canon body for use only on macro with the MP-E 65mm.