[Guest]

Thanks for the info. The particular lens I was looking at is the Canon 100mm 2.8 macro. Any experience with this particular lens?

 

The Canon EF 100mm f/2.8 USM a prime, just a "normal", fine macro lens. If just focuses very close, i.e. down to 1:1 magnification (like most dedicated macro lenses), and it has a good working distance (see working distance <a class="bbc_url" href="http://photonius.wikispaces.com/Close-up+%26+Macro" title="External link">http://photonius.wik...lose-up & Macro</a>). The one extra thing it has is a focus limiter, see review here on photozone.