We are celebrating my mom's 90th birthday this evening with 90 guests at my sister's home. If the rain holds off, it will be an indoor/outdoor affair. We have hired caterers, so, apart from overseeing the tea service, my only duty is to capture the event on camera. I am thinking I will take the Sigma 18-35 mm for wide shots of the gathering on the lawn and the nifty 50 for all the rest. I will also take the SB-700 and am debating whether or not to take along the Rogue flashbender or just use a diffuser over the flash head to soften the flash effect. I won't be able to bounce off the ceilings or walls, I think, as the ceiling is two-story and it and the walls are yellow. The north walls are basically full-length windows.
This is one of the things I feel less comfortable about and have less experience with, so I'd be grateful for your best tips for shooting a crowd.