Long exposure - these are the words I'd like to use to talk about Rachel and Aaron's wedding day. 

This is a photography term, which you may know, to describe a technique used to take photos where there isn't a lot of light, so the camera opens its eyes for longer to take in as much as it can and capture an image.

The issue is, if anything is moving, it usually looks like it's leaving a little blur-trail - you've seen those photos of the sky at night where the stars are all blurred into thin glowing lines of in the deep blue. There it is: long exposure.