The 30° rule is a basic film editing guideline that states the camera should move at least 30° between shots of the same subject. This change of perspective makes the shots different enough to avoid a jump cut. Too much movement around the subject may violate the 180° rule. Film editing is the connecting of one or more shots to form a sequence, and the subsequent connecting of sequences to form an entire movie. ... In film editing, a jump cut is a cut between two similar scenes, so that the objects in them appear to jump from one position to another. ... This schematic shows the axis between two characters and the 180° arc on which cameras may be positioned (green). ...
Following this rule may soften the effect of changing shot distance, such as changing from a medium shot to a close-up. Some consider this rule to be outdated.
Make piece sign, use other finger at tips of piece sign fingers to measure how wide the fingers are spread, then see where 30degree finger is pointing.
What I did was use a protractor to see how wide my fingers need to be to make 30degrees, then place other finger at tips [of piece sign fingers] to see how that lines up.
A right triangle 12" on one side and 6 15/16" on the other will create a 30degree angle (see my April '04 article for more information).
The 30°rule is a basic film editing guideline that states the camera must make at least 30° movements around the axis of movement while still respecting the 180° rule.
These 30° of movement avoid the creation of a jump cut, or cutting at the same angle, making the subject appear to "jump" in the frame.
Moving the camera at least 30° between shots seems to soften the effect of changing distance such as changing from a medium shot to a close-up.
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