The last video I made about using household light bulbs for your low-budget movies
had a light meter in it and someone asked me how it worked. Light meters would usually
not be used for something more low budget because your probably going to be shooting on
video and light meters are used to measure the light needed to properly expose film.
However if one day you do decide to shoot a few rolls of film (and develop it in your
bathtub or whatever) you’ll need to use light meter before you even start rolling to make
sure you set your aperture to the correct “f-stop”.