I bought a Makinon MC Macro 135 2.8 for portraits, and this is my first macro lens (I think, hard to remember). I won't be using it for anything other than that, but one thing I noticed is that if I rack the lens to its closest focusing distance, I can then twist the front of the lens, where the macro feature is, and get a closer minimum focus. Pretty neat. Is this how these things are supposed to work? Bug shots aren't my thing, but now and then a closer minimum focus distance comes in handy. With a 135mm lens, closest focusing distance is a relative thing, and usually not that close.