Pulldown Question

[coaa]

Why is telecining a video referred to as a 2:3 pulldown? You are converting 4 frames into 5 frames or 10 fields. Same with a 3:2 pulldown to go the opposite way. ..

[Dimmer]

Here's a link (http://www.zerocut.com/tech/pulldown.html) (one of many) explaining this. Search Google for "pulldown explained" or something similar to find out more.

[coaa]

Ahh knowledge is power!

Thx that has been bugging me for awhile now.

[Guest]

Suppose you have progressive frames A B C D. You could denote the field sequence as:

A A B B C C D D

To map this to NTSC rate, we duplicate 2 of the fields:

A A A B B C C C D D

The field pattern is 3 from one frame, then 2, then 3, then 2... Hence, 3:2 pulldown.

If you pulled down B and D instead of A and C, you'd have 2:3 pulldown. They're really the same thing fundamentally, but with different starting points for the pulldown pattern.

[jorel]

ah...now i understood! using less than 100 words you explain better and clear that lots of big pages -->trying<-- to explain the same using thousands (and confused) explanations, pictures and blah blah blahs that makes me blind and encreasing my doubts.
thanks for that very clear explanations neuron2! :) this thread is bookmarked, saved in hd and i will use as reference.