Hello I am new to this forum and I am sure I am much more of an amateur than the many talented professionals here. I prefer to shoot portraits and people scenes of travel photography. My Canon XTI Rebel Kit lens, the 18-55, broke (actually I have a theory that the security of a recent foreign country...

I'll be doing my first wedding soon and was wondering if the sigma 50-150 is good to use during the ceremony? I was planning to use my sigma 24-70 but its noisy & not as quick or sharp as the 50-150. Is this wide enough, or should I stick with the wider lens? (I plan to use my canon 85 1/8 for...