I have just bought, (on the net) a Lee foundation kit but Im not sure whether to get the wide angle adaptor or the standerd or both for the lenses I have. Which are, Nikor 18-105 VR kit lens 67mm thread dia, supplied with Nikon D90 & an older Nikor AF 24-134 D lens 72mm dia. & if i get the wide angle one will it cover all the lenses Im likly to purchase in the future?