To learn some of the key terminology and key conventions, and the language of moving image because each media form has its own set of rules. Any for of art always comes down to space, size and scale.
camera focus = using rack focus to reveal an important piece of information that was unclear before focus was changed
in my piece I could use rack focus when the murderer is pulling the trigger on the gun, by keeping his face blurred so that his identity is unknown however keeping the key info, being the gunshot, on focus,
shots, sizes, angles and movements =
High angle / Low angle / bulls-eye / birds eye / canted angle
Tracking / Panning / Craning / Tilting / Hand held / Steadicam
Establishing Shot / Long Shot / Medium Shot / Close-up / Big Close-Up / Extreme Close Up (students often struggle with the first and the last again issues with SCALE, SIZE & SPACE, so practice is really important)
I could use a close up on the victims every and an establishing shot the location
insert shot = shows all the important info to provide dramatic emphasis.