LoneRangeFinder wrote:
If you really want t shoot at 1:1, get a macro lens.... extension tubes are fine for close ups.... but you will not get the same IQ using them with zoom lenses. Go to the macro forum and look at the real world of macrophotography. All of those guys use macro lenses. I do feel, however, that the brand makes less difference than it used to. Sigma, Tokina, and Tamron all make competitive lenses.
Nathan specified closeups, and I won’t hijack his thread by getting into 1:1 macro. My tests with primes and zooms show that whatever I.Q. the lens displays at its closest focus, there will be virtually no discernible loss to at least 1:2 with extension tubes or bellows. Anyone who doubts it can test for themselves. Of course, I’m talking about three-dimensional subjects - flat copy is a different animal.