Camera- business card: have to try this trick.How to use a business card to bounce light up to create a nice overall illumination, while some of the light penetrates directly through the card, disperses and lights the subject from the front.
Exposure Lock (AE-L Button) is the abbreviation stands for Automatic Exposure Lock. It is useful using automatic and semi-automatic shooting modes. Where has this information been all my photographing life? So freaking helpful it's not even funny.