I have lost count of the number of ads I have seen where the seller says that the warranty period is still 12 months just because he still has an unsent blank warranty card! Does it really work this way?
If that's the case, why would anyone even bother to fill in the warranty card - just wait until you drop the camera/lens then register the warranty before sending the item in!
I can't believe that Canon or Nikon etc would not check your receipt against the warranty period. Worse still, some buyers even rate their goods as "Mint" on this basis even though they could have had it for several months. Ok, rant over - what do you guys think?