Upgrading to series 2 600mm and 500mm Jun 25, 2013 2:39:12 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Tonji Ramos on Jun 25, 2013 2:39:12 GMT A short review of the new 600mm and 500mm series 2. www.tonjiandsylviasbirdlist.com/Equipment-List/Canon-series-2-500mm-and-600mm/30174253_2GPvXD#!i=2595355269&k=vr7dqkR