It has been a complete joke on the part of customer service. I send the lens together with photographs and they tell me that it is damaged and that it does not come under warranty, I tell them that the lens did not suffer any blow and that the photographs sent at the same time as the lens prove it, they send it back to me and it comes with the outer ring broken, they ask me for more photos and I send them to them and they tell me that neither they nor the transport have done it and that in the first photos it cannot be seen well if it is broken or not, I send them the same photos but marked in colours where it is seen that in the first shipment it is not broken and when it returns it appears with the blow. There is no way after numerous calls so I ask them desperate and repair budget and they tell me that they do not repair. I send it to an approved specialised centre and they repair it and send me a report in which they assure me that the lens has not suffered any blow and that it is only a question of greasing and maintenance of the internal filters and that the breakage of the external ring has nothing to do with it, it is a plastic trim. I go back to Backmarket and now they tel...