Difference between shooting 1080i/24p and 720p/24pn

[dcdirector]

Thank you all for your response, especially Dave. My question was thoroughly answered and I appreciate it.

 

[Andreas]

The 1080p24 mode also doubles the effective bit-rate (80Mb/s vs 40Mb/s -- although record time on P2 reduces by 2.5), as the frame detail doesn't increase much between the 720p and 1080p, these extra bits primarily go to reducing compression artifacts. This is a good reason to shoot 1080p24 in the HVX. If you are posting in uncompressed (or non-DVCPRO-HD intermediate) it can be worth shooting in 1080p24 and down-resing to 720p in post. That archieves the best looking 720p data, and make your post easier (disk & performance issues.) After all the the cameras 720p mode is 960x720, and the 1080p mode is 1280x1080, so the vertical only down-res from 1280x1080 to 1280x720 is very clean -- although that res will not fit in DVCPRO-HD, so you have to go with an intermediate post-production format.

David, thats the most valuable post I ever read regarding the value of 1080i25p ! The only question I have is this: do we suppose to deinterlace after down-resizing (or before) ? I mean the stream is 50i isn't it ? If I want to capture with Aspect-HD using PremierePro2... well just explain the step by step prosedure, we should work in progressive timeline ? (for anyone that gets confused I speak using PAL fps, 1080i25p over50i is for PAL and 1080i24p over60i is for NTSC, as far as I know)

Thanks
Andreas

 

[BigMike]

David, thats the most valuable post I ever read regarding the value of 1080i25p ! The only question I have is this: do we suppose to deinterlace after down-resizing (or before) ? I mean the stream is 50i isn't it ? If I want to capture with Aspect-HD using PremierePro2... well just explain the step by step prosedure, we should work in progressive timeline ? (for anyone that gets confused I speak using PAL fps, 1080i25p over50i is for PAL and 1080i24p over60i is for NTSC, as far as I know)

David: sounds like a job for Prospect HD. The more I read about Prospect, the more I believe it's the best solution for us HVX200/PC owners.