aspect ratio

ratio of width and height

safe zone

area of visibility

alpha channel

transparency for the background

pixels

the smallest controllable element of a picture represented on the screen

resolution

aperture

How much light is allowed into the camera lens

shutter speed

the amount of the time the shutter is open (how motion is captured)

ISO

film/camera sensitivity

frame rate

the number of frames shown within a second

rendering

the process of generating a final product from different elements (can go offline)

room tone

the "silence" recorded at a location or space when no dialogue is spoken

slow shutter speed

streaky motion blur

b-roll

extra shots that support your story

rule of thirds

divides your frame into 9 equal parts