I currently have a 10d and will be getting a 5d classic this week along with a 70-200 L. I need a wide angle and would like L glass but I'm over budget. However, a friend has a firnd that wants to sell the Sigma 17-35 mm 2.8-4 EX DG Aspherical HSM Lens for $200.00. Deal , No Deal? Thanks for thoughts

