xarqi wrote in post #12621028
3? Which 3? There are at least 7 that I can think of:
18-55
18-55 USM (for Japanese domestic market)
18-55 II
18-55 USM II (for Japanese domestic market)
18-55 III
18-55 IS
18-55 IS II
I don't know if there is an 18-55 USM III, but it seems unlikely if the rationale for the non-IS Mk III lens was to keep it as cheap as possible.
You are correct except that there are also "Made In Japan" and Made In Taiwan" versions of some of the 18-55's. As far as I know, the country of manufacture should make no difference to the actual lens other than the external markings.
For example, there seems to be THREE versions of the 18-55mm IS (MK I) available.
One version has "MADE IN JAPAN" on the front of the lens and was usually seen with the XSi/450D or bought separately on it's own.
The other two have only "CANON INC" on the front, but have either "Made in Japan", or "Made In Taiwan" molded into the rear mount. These seem to show up with the XS/1000D or T1i/500D and newer cameras.