Pulldowns - Conversion Into Destination Formats; 2:3 (Normal) Pulldown - Digital Projection E-Vision Laser 4K Series User Manual

Digital Projection E-Vision Laser 4K Series FRAME RATES AND PULLDOWNS EXPLAINED

Pulldowns - conversion into destination formats

Notes
Pulldowns are a method of converting a 24p source into a different destination format by adding extra frames to the source.

2:3 (normal) pulldown

This method is used to convert a 24p source (film) into a 60i destination (NTSC video) by adding two extra fields for every four frames,
effectively increasing the frame rate to 30 fps. The frame is split into fields and then two fields are repeated for every four original frames as
shown in the illustration below.
Original film, Field 1 (odd) Field 2 (even) Resulting video,
24 fps 30 fps
Reference Guide Rev A June 2017
page 96