Hi guys! Looking for some input on extension tubes vs a dedicated macro lens. I have always admired macro photography and now i want to try it out. Is extension tubes a "good enough" solution? Will it affect image quality? I already own the sigma 60mm 2.8 (wich i love) so getting another one with the same focal lenght do not make any sense. But if the oly is noticeble greater in optical performance and so on, maybe i should consider selling the sigma... If you are using tubes, with wich lenses?