What is the use of a flash diffuser? And how can I make one.
A flash diffuser, as it describes, defuses the light. In other words it softens the light that is sent from your flash to your subject.
This is going to sound odd but, one thing that I used for many years when I first started using flash in my photography, was to cover the flash with a piece of tissue held on with an elastic band.
You can also use a piece of white copy paper cut to size and taped over the pop up flash.
Another option I learned about making a flash diffuser was to cut a piece of plastic from a plastic milk jug and form it around to flash.