Shooting weddings can be very stressful for every photographer especially when things doesn`t turn out the way you hoped for.
I really made my own experience when it comes to shooting a whole wedding. The worst thing I had to live with was unsharp images. I was renting a 50mm lens that was quite unsharp. I didn`t realize it until I got home with tons of photos. This is something that really gives you a headache. Wedding images can be everything but if they are unsharp you feel like the biggest looser.
Here are some things I would recommend and think about.
Get the right glass: 20mm/35mm/50mm/24-70mm/85mm. Know your lenses! Keep always an eye on your current shutterspeed, *moving people! Get a 2nd Camera!
Power? Right, make sure to have enough batteries in your pocket for flash and camera. Keep things very simple, think fast and move quick. Look forward, what`s next happening. I know this is probably the hardest part – To see what’s gonna happen next.
Use your flash off camera.
Checklist? Yes write down what you want to shoot! Without shootlist I would not even start. Bring your own food. Because you wont have the time to sit down and have lunch. Shoot-shoot-shoot. Weddings are usually once a life, and they won`t repeat. Don`t be late. Last but not least; Do not forget to smile:-)
*Shutterspeeds: 1/60 = Portraiture if people don`t move 1/125 = Slow moving people 1/250 = Kids and pets – underneath you won`t get any sharp images. That`s why I highly recommend fast apertures like f2.8 or even faster. Or use flash.