http://www.efusers.com/2007/12/04/two-more-new-sigma-lenses-sigma-apo-50-150mm-f28-ii-ex-dc-hsm-and-sigma-apo-70-200mm-f28-ii-ex-dg-macro-hsm/ Where Canon Digital SLR users can meet, learn, trade and more including our Photography Forums! Wed, 07 Jan 2009 03:24:28 +0000 http://wordpress.org/?v=2.3.1