Video shooting about Sony TX7! Help!

Question 1: For the last six articles, there will be notes at the bottom of the article you read. . . You just don't realize it.

Question 2: 1920

x

1080 (50 frames per second, interlaced)

1440

x

1080 (50 frames per second, interlaced), where interlaced is better than line by line, and the fluency is better.

50 frames per second, interlaced = 25 frames per second, line by line.

Interlaced 2 frames is equivalent to progressive 1 frame.

Some cameras use 25 frames per second, progressive scanning, and the nominal value is 1080p, which is actually no essential difference from 50 frames per second and interlaced scanning.

Question 3: Average bit rate * time = occupied space

Specifically, the bit rate (code rate) is the space occupied per second (unit: bits).

8bit= 1B (bytes), time: s (seconds)

Take 6Mbps shooting 1 min as an example.

6MB/8*60=45MB, which is about 45MB per second.

I shot a 720p video with TX 1 for 2 minutes and 58 seconds, which is about 13 1MB, which is similar in size according to the above formula.