I wouldn’t be annoyed. I’m annoyed that I’m not your date Nimis, darling. I would bring it. Even if it causes some small unpleasant interactions with other guest and a few weird looks, you might capture something beautiful for your friends. Who cares what those other people think? And if you’re worried about a place to stash it, see if the venue has a room they can keep it in. Hotels have safety deposit boxes behind the front desk for guests, and the bride or groom could set you up with that in about two minutes total. Or you could ask the bride or groom if they have a room for their things you could dump the camera in occasionally. If they get some great pictures out of it, taken by a dear friend, I doubt they’ll mind. I wouldn’t.