Canon AVCHD and PAL 25p

[oelph]

I'm getting a Canon HG10 soon and have read all the usual info about 24p performance and pulldown. Being a complete newbie to this I've just come across some information that suggests for PAL users, using 25p, none of it is an issue. IE, no need for pulldown removal, no problems with juddering etc. (Obviously some motion blur due to the lower frame rate). I've seen some examples of 25p on the web which do seem to confirm it, but with so many options available to render files you can't always believe what you see.

[A n d r e w]

You're right. There is no pulldown for 25p. 25p is the "PAL" equivalent of 30p: a precise match for framerate which requires no fancy footwork on the part of your editing software.

[alpine101]

Originally Posted by A n d r e w

You're right. There is no pulldown for 25p. 25p is the "PAL" equivalent of 30p: a precise match for framerate which requires no fancy footwork on the part of your editing software.

Which gets back, as usual to the US mains electricity supply, and the choice the first sound film makers made.
Sound film was made at 24fps, reckoned to be the slowest rate that was acceptable in cinemas without visible flicker and giving acceptable sound quality. The US mains is 60Hz, so early TVs over there used it for their frame synchronisation, and thus ran at 30fps. Problems arose when TV developed telecine to show films and somehow they had to reconcile the film at 24, with the TV at 30. Thus the horrific but necessary pulldown frame repeating was developed. Over here, we never had a problem because films shown on TV are just speeded up imperceptibly and shown at 25fps, even though the original film was normally 24...

[oelph]

Thanks both! Lots to learn but interesting none the less.