Hi! Just a bit of a background, I'm a hobbyist and started with photography in 2008. I currently have a Canon 7D. I'm into portraiture and some events. I mainly use a 50mm 1.4, 24-105 f4 or the 70-200 f2.8 IS. I'm itching for the 24-70 f2.8 though that would mean I will have to let go of my 24-105 which is also my primary walkaround lens. My dilemma is, is it worth the change? Is it worth the loss of the extra focal length specially on a walkaround lens? Thanks in advance! 



