I thought I'd share an image I took yesterday. This is the reason for why I'm looking into magnification, as this is as close as I could get to the little fella with the 100 macro. Would have loved to get more detail!I notice you have a 5D MK III. Be aware that neither the Canon or the Kenko TC's will work with the 100L. The Canon TC's will interfere and will not mount, while the Kenko 1.4X PRO 300 DGX will lockup and require the camera battery to be removed and re-inserted before the TC will function again with the 5D3 and a different lens. You can get a fully manual TC and use manual exposure with the L, but not autofocus.
This was shot handheld so the focus plane is a little off, but oh well Cheers
I hope there is a update to the TC.