Just off the phone with Kenro and want to set the position straight as there is some misinformation in this thread.
First thing, Kenro were totally helpful - well impressed by their service.
I posed the question that I'm buying from either Hong Kong/Japan and what would happen in the event of a warranty claim in the UK
- The Tokina Worldwide warranty is exactly that, it does NOT matter about import/export agents
- Kenro has NO problems taking lenses that have been bought grey or otherwise AS LONG as they have the 2 year worldwide warranty card
- Kenro have recently seen a couple of cases where warranty was turned down - this was due to the sellers REMOVING the warranty cards and replacing with their own return to vendor cards
They had no problems when I told them I was going to buy import, they are confident of the product and only care of its function and customer service rather than purchase location. They are also aware of UK stocking issues.
As said, very impressed with them! Now looking for sellers that guarantee availability of the certificate... Will update