i have the above mentioned filter for sale which is in mint as new condition due to the fact that i have now sold my 70-200mm F/4 L as i am now upgrading to the 100-400mm f/4.5-5.6 L which uses 77mm filters, therefore the 67mm filters are now surplus to my requirements & i have decided to sell this for £30 or alternatively swap for the same filter but in the 77mm size if you have some you wish to trade for then i would also be interested in that too! please inbox me if interested!