I enjoy taking close-up shots of objects, but I want to "get closer." But is there any difference in magnification between a 100mm Macro lens and a 100mm prime other than minimum focusing distance? I'm asking because I see shots that people have taken with a 100mm Macro lens, but my 100mm non-macro lens doesn't even come close to that level of magnification. Is it because of the minimum focusing distance that allows them to physically get closer, or do these folks use extension tubes? I realize I can use my 70-300 lens to get closer, but I'm wondering if there's an inherent magnification difference between 100mm and 100mm macro. Just trying to better understand the optics involved. Thanks in advance for your feedback.