If this were a perfect world, ice cream would be good for you, celery would be fattening, and camera manufacturers would arrange the controls on all flash units in the same place. It’s too bad on all accounts.
Even though portable flash units have buttons and dials in different places, the basic functions of the various features are the same. In this section, I will go over them and explain when to use them. You will probably need to consult the manual that came with your flash to identify where the features I discuss reside on your unit. Whenever you travel away from home, it’s a good idea to have this manual with you because if you don’t use a function for a while, it’s easy to forget where it is and how to use it.