Hi. I've worked in the past with dedicated macro lenses, using extension tubes with and without AF coupling and with reverse mounting a lens. I am trying to limit my lens arsenal when travelling and have gone down to the 12-35 2.8 and the rokinon 7.5mm fisheye. I don't care much for tele shots or for primes (sold the 20 1.7 and 25 1.4, have the 45 1.8 but rarely use it). What I do miss is getting extreme close ups. Maybe not true macro but at least 1:3 - 1:2 magnification ratio. Is there any attachment lens that works well with the 12-35 2.8? Thanks!