I just recently purchased my first DSLR camera, a Canon EOS Rebel Xsi. So far it seems amazing, but I'm now looking to expand my lens selection. It came with a standard zoom lens (EF-S 18-55mm f3.5-5.6 IS), but I would like a better zoom. I've been looking online and with Consumer Reports and found a lens that seems very reasonably priced (Tamron AF 55-200mm f4-5.6 Di II LD Macro). Consumer Reports had it listed in the "tele zoom" category, but the manufacturer's website has it listed as "macro zoom" lens. So what is the difference? (P.S. any recommendations for other modestly priced zoom lens is appreciated too.)