Better Backup

Fault Tolerance: At its simplest, you treat two physical disks as one, with one being a live copy of the other one. If the primary fails, the second kicks in and things work as they always did except you get an error that a disk has died. It’s easy to do, but as each disk is a replica of the other, it’s not particularly inexpensive.

Off Camera Flash

You will need five basic pieces to get started with off-camera flash. Unsurprisingly, one of those pieces is the off-camera flash itself. Then you will need a light stand, a tilting umbrella bracket, a basic umbrella and a sandbag. Let’s look at each of these pieces individually.