574 as you know most photojournalist need to a 70-200 f/2,8 tele-zoom lens. I am Canon guy but I am using Sigma lenses (70-200 f/2,8). When I using my lenses to object at indoor area usually out of focus area. I used to tripod and everything. always a few blur with sigma 70-200. do you think lenses are damaged or this is Sigma ? thanks 7 2007-10-31T16:45:02Z 0 2008-03-12T12:56:38Z false 17996 false 36097 2007-11-01T11:47:18Z Istanbul-ankara true false 70-200-f-2-8 1 2009-04-16T18:11:19Z 14783