Article ID : 00129674 / Last Modified : 11/04/2018

What do 50i and 50p of the recording movie format AVCHD 50i/50p means?

About 50i and 50p of the recording movie format AVCHD 50i/50p.

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For PAL region:

50i records 50 frames per second using the interlace scanning system, and 50p records 50 frames per second using the progressive scanning system. When AVC HD 28M (PS) is set, movies are recoded with 50p. If not, they are recorded with 50i. 50i is recommended for normal recording.

The interlace scanning system reads even-numbered and odd-numbered scanning lines alternately. Meanwhile, the progressive scanning system reads even-numbered and odd-numbered scanning lines simultaneously thus it has double information per unit time compared with the interlace scanning system.

Sample images:

Interlace scanning: 
 

Progressive scanning: