What you say above isn't really correct.
Originally Posted by Galah
The OM Zuiko range of Macro lenses includes 3 lenses (50mm f/3.5 macro, 50mm f/2 macro and 90mm f/2 macro) that will all focus between 1:2 and Infinity so these three lenses can be used as macro lenses and as a normal lens.
The "bellows" lenses can't be used like this but they will provide 1:1 and higher magnification which you can't get with the former 3 lenses I've mentioned.
Anyway, I recommend getting hold of an OM Zuiko 50mm f/3.5 Macro, as they are cheap, and also excellent as a standard lens. Like you say, it's great to have the ability to close focus and still have infinity.