Sounds simple, go to a store and buy it or order it over the internet. What is making this complicated is that I live in Canada. This lens is selling for $560 to $590 here; at Adorama it is selling for $390 (yes that's in U.S. dollars but for all intents and purposes today a buck is a buck!).
In Canada, Sigma products come with a 10 year warrenty; in the United States its 4 years but the Adorama web site says the international warrenty is one year.
I have read lots of Sigma 30mm posts on this site and question whether I will need after sales service from Sigma to get the lens "right". Sigma Canada is a separate distributer and may not feel obligated to honour a warrently on a lens bought in the U.S.
Your comments and advice would be appreciated; thanks.

