convert 25p to 50i best method at DVinfo.net

Geoffrey Cox · April 18th, 2017, 07:35 AM

Hi, I have footage at 50i and 25p. The majority is 50i. I have tried viewing both in Premiere: the 25p in a 50i timeline and vice versa. The 50i footage looks pretty soft in the 25p timeline (I'm assuming it just plays one field?) and the 25p also is softer in the 50i timeline but not as bad (not sure how the 50i timeline is interpreting the 25p material). I haven't made any adjustments to the sequence settings - just let the software determine them from dropping the material in. So my question is what is the best approach here and is there a way to convert 25p to 50i prior to sequencing without too much loss of sharpness?

I should say that at the end of the day I will probably convert it all to progressive for web upload but that will involve converting to 60p (or would 30p be better here?) for the web but I'd rather leave that till the end.

Ann Bens · April 21st, 2017, 01:48 PM

If its for the web make it all 25p.
converting 25p to 60p or 30p for that matter will be a pita.
Why 30/60p?

Geoffrey Cox · April 21st, 2017, 05:07 PM

Because all computer screens are 60Hz so movement for all PAL frame rates (25p, 50p, 50i) looks rough.

April 18th, 2017, 07:35 AM	#1
Geoffrey Cox Major Player Join Date: Aug 2008 Location: Huddersfield, UK Posts: 469	convert 25p to 50i best method Hi, I have footage at 50i and 25p. The majority is 50i. I have tried viewing both in Premiere: the 25p in a 50i timeline and vice versa. The 50i footage looks pretty soft in the 25p timeline (I'm assuming it just plays one field?) and the 25p also is softer in the 50i timeline but not as bad (not sure how the 50i timeline is interpreting the 25p material). I haven't made any adjustments to the sequence settings - just let the software determine them from dropping the material in. So my question is what is the best approach here and is there a way to convert 25p to 50i prior to sequencing without too much loss of sharpness? I should say that at the end of the day I will probably convert it all to progressive for web upload but that will involve converting to 60p (or would 30p be better here?) for the web but I'd rather leave that till the end.

April 21st, 2017, 01:48 PM	#2
Ann Bens Major Player Join Date: Jun 2007 Location: The Netherlands Posts: 710	Re: convert 25p to 50i best method If its for the web make it all 25p. converting 25p to 60p or 30p for that matter will be a pita. Why 30/60p? __________________ ACE Premiere Pro CC Adobe Community Professional

April 21st, 2017, 05:07 PM	#3
Geoffrey Cox Major Player Join Date: Aug 2008 Location: Huddersfield, UK Posts: 469	Re: convert 25p to 50i best method Because all computer screens are 60Hz so movement for all PAL frame rates (25p, 50p, 50i) looks rough.