The day before the big event, prepare every photo that you will need the kit, being careful to:
* Charge all batteries of cameras.
* Make sure to have spare batteries for flash.
* Format memory cards and all remember that the memory (especially if taken in RAW) Is not enough.
* Check that the sensor on the objectives and there is no dust / dirt, do a sensor cleaning
* Make sure the date and time is correct on all cameras
* Each camera must also have the same white balance settings (possibly CAR) and color correction.
* Make sure the setting is shooting format RAW.
* Remove the filters from the goals that you do not.
* Make sure you have a lens hood to be applied, for images of contrast even in daylight.
* Mark a calendar all times of the program of marriage and try to stay in place in advance.