there will still b grey sets, regardless of the international warranty.
international warranty only applies to local sets which are bought in their respective countries.
eg if u buy a local set in HKG, it is covered by the local warranty, so it will be covered by the international warranty.
but if u buy a grey set regardless of which country which isn't covered by the local warranty but the shop warranty, it won't be covered by the international warranty.
when i say local warranty, i mean the local warranty provided by tokina, not shop.
so as long as it's a official warranty from tokina, then it shld be international warranty then?