Is 50i better than 25p?

[tcgjeukens]

Question: Is 50i better than 25p? (resp 60i better than 30p)

A couple of days back I started a thread asking What 1080p camera's are available?

Shooting scenes containing pan-movements with my HDV 1080i camera* produces artifacts:
- horizontal pan: vertical lines are jarred/ have saw-tooth edges
- vertical pan: horizontal lines jitter up/down (they seem alive)

Knowing 50i is 50 "half frames**" per second, my logic says 25p - 25 "full frames" per second does give a better result ... a result with less artifacts.



Q: Is this true?
Q: Is it true that de-interlacing 50i material gives a worse result than shooting 25p native?



Coen Jeukens

(*) Sony HDR HC7
(**) Though the capture rate of 50i is twice of 25p, with movement each half frame captures displacement ... and thus the two half frames together constitute blurred frame.

 

[bigbossbmb]

you really didn't need to start a new thread.... this is just a continuation of the other one. *Mods do what you will*

that being said:

25p/30p will not have the jaggies as you say it, but when panning/tilting it will "strobe" if you don't slow the movement down.

de-interlacing 50i just creates a low-resolution version of 25p.

as for 2 fields creating a "blurred frame", I'm not quite sure you're getting what interlacing is. Each frame is not meant to be shown as a whole, each field is shown in succession. That's why if you actually looked at the footage on a production monitor, you wouldn't see the jagged lines.