Here is a video review of the very expensive nikon 70-200vr lens (about £1300). I have also done some comparisons against the nikon 18-200vr lens (about £600) Lens is rented from Calumet. Their website is www.calumetphoto.com and their store in edinburgh is on Bonnington road (near leith) the rental charge was just under 50 pounds for a day but also for a weekend as long as it is handed back by 10am on monday www.dombower.com