Panoz wrote in post #14238427
If you're covering what you need to, you won't have TIME to use all those lenses. Changing lenses at a wedding stops you from shooting and can introduce dust on the CCD/CMOS, so don't do it.
By FAR AND AWAY you need a backup camera body, not more glass. And flash is essential. To be brutally frank, you are not prepared to shoot a wedding at this point. Please defer to someone else and ask if you can assist. Don't screw up a family member's big day learning what works and what doesn't.
not to be a d*ck, but is your g12 your backup?
for my first wedding, my backup was a film body, so i'm not knocking it, but you're coming off a bit harsh here.
I'm just thinking you must have much more gear than is in your signature is all.
and if you don't swap lenses because you are afraid of dust getting on the sensor, do you also not kneel for a lower perspective because you might scuff your pants? seems like a pretty limiting mindset. people swap lenses all the fricken time.