Tip for the guy shooting his freidns wedding>>>agree to be a backup photographer taking candids and shots the main photographer isn’t getting.If you don’t know your DSLR that well or have any experience of shooting weddings before then it could be a disaster.Your freidns will tell you your shots are ok whatever ..but you have to be critical, this is one set of photo’s and moments you can’t recreate, so you need to be able to deliver a reasonable standard of product for the couple.Good luck