ProRes422, no 1080p???

[TimothyD]

Interesting Evin...

I should mention that I had planned to shoot in 2k and then edit as 1080p60. However, shooting 2k and then editing at 720p60 will give me even more room to pan and scan, do image stabilization and zoom in post (a lot if needed).

That is sounding pretty swank. So do you see any drawbacks to the up-rezzing to 1080i from 720p solution??? It almost sounds too good to be true:)

[Nick Shaw]

Tim

I wouldn't think you would be outputing to 60p web movies any time soon, and even if that was required, at a web resolution, the difference between 60p derived from 60i and 60p would be pretty hard to see. 30p from 60i for web delivery is what is usually done at the moment, so that won't change.

Does that make sense?

[Jim Arthurs]

So the question is, will 1080p30 look as good as 1080i60 when output as such?

I use the HVX recording 1080 30p all the time for work that winds up as web files, and also the same stuff winds up on DVD. 30p is a fine format for NTSC video... it's a little less strobe prone than 24p, yet still more film-like than interlaced footage.

It is NOT the best format for trying to go back to film (24fps) or PAL, but in all other cases is quite nice.

[TimothyD]

Hi guys,

Thanks for the feedback. I suppose I should have mentioned that I will definitely not be outputting at 60p for the web. I just planned to shoot 60p so that it looks good when I output as 60i for broadcast.

I might even drop the frame rate to below 30 for the web in some cases:)

Photo-Jpeg at 15fps looks pretty damn sweet to me:)

I'll also definitely be scaling waaaaay down... I plan to keep most of it in the 16:9 aspect ratio, but will be reducing it to about 50% or less of the original frame size. And yes, I know that shooting HD for web delivery is total overkill... But since I have to shoot HD for the broadcast stuff I do, I might as well kill two birds with one stone, and be able to share b-roll and other assets between all projects...

[Evin Grant]

Interesting Evin...
So do you see any drawbacks to the up-rezzing to 1080i from 720p solution??? It almost sounds too good to be true:)

It's actually not an UP-rez, it's a cross convert. And no, I don't see any drawbacks, other than the fact that you need to go to an interlace format at all.

[Lucas Wilson]

It's actually not an UP-rez, it's a cross convert. And no, I don't see any drawbacks, other than the fact that you need to go to an interlace format at all.

Hi Evin!

How do ya figure? 1080i/p is 1920x1080. 720p is 1280x720. Ain't that an uprez?

Lucas
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ASSIMILATE, Inc.
LA, CA, USA

[Graeme Nattress]

Because to do proper compatible 1080i you've got to filter the vertical resolution to about 70%, which makes it about 700 pixels real vertical detail, or else you get interlace twitter. Hence 720p which being what it is, doesn't need any vertical filtering has a full 720p vertical resolution, so yes, it's a cross convert to 1080i. Yes, you're going from 1280 to 1440 (realistically speaking) on the horizontal. But it's near enough.

Graeme

[TimothyD]

That's quite interesting indeed.

Why 1440? Is 720p non-square in the horizontal direction?

It seems like it would still be best to shoot 2k and edit 1080p though.

Could you Red guys pressure Apple on that? It seems like an odd thing to neglect on their part, despite the fact that ProRes is meant to help deal with the broadcast workflow.

The fact that I want to edit in 1080p60 and output in 1080i60 should be a pretty common thing... Doesn't seem like they should have missed this and left it out:(

[TimothyD]

Or more importantly Graeme,

Will it work just as well for me to do my editing and post in 2k Redcode Raw but output the stuff for broadcast as ProRes422 1080i? That would be just as good IMO as using ProRes, or am I missing something? Processor overhead, etc???

Thanks,

Tim

[Chris Kenny]

Why 1440?

ProRes 720p is 1280x720, square pixels. 1080i is basically always broadcast 1440x1080, non-square pixels.