Inner fungal bloom issue, 6 month old Canon ef 70-300 L

sanderspics wrote:

RedFox88 wrote:

From reports I've read on here there's a good chance that if sent to Canon for warranty service, it would be declined since it is not a defect in the lens it self. Where the moisture got inside the lens is anyone's guess. Could have been when you had it or when Canon had it but they probably have a very controlled assembly area for lenses.

Yes I feel that would also be the result if I shipped it underwarranty, we all know that companies don't want to do after sales work if they can avoid it.

The reason I suspect this could be a factory fault is the one mark (the worse one) on the very edge of the front element looks like its the start of this problem, letting moisture in and then spreading to the front of the inner 2nd element, though I don't fancy arguing my case with Canon as they refuse to do the work.

Why on earth do Canon not have a worldwide warranty though, it seems very unfair that the only place the warranty stands up is in the original country of purchase. I think its very poor for an international top end camera manufacturer.

Thanks for your reply mate

Thanks to everyone else that has helped out by replying to this thread

It is possible that this problem was initiated by poor storage in high humidity at the dealer you purchased it from.  And one of the reasons why the warranty situation varies from country to country is because manufacturers can not control, and therefore guarantee, the condition of stock once it gets outside their official channels.  I'm not saying the place you purchased it from was unofficial but if you are purchasing in a country where you don't know the dealers very well you do need to be careful.