R3D + ProRes Minimum Compression Ratios ?

[Christopher*Seguine]

In camera prores dailies sounds nice, but not if it negates the lower compression rates of weapon over dragon.

I don't see how ProRes effects compression ratio listed in either the Operation or Media Guides.

We only ever use 6k 24 , 60 and 5k 96 - anyone able to fill in the ??? marks ?

Minimum Compression Ratio possible:

	DataRate	6144x3160 / 60 fps	6144x3160 / 24 fps	5120x2700 / 96 fps
Weapon CF
Weapon MG
Dragon
Weapon CF R3D + 2k HQ
Weapon CF R3D + 2k 422
Weapon CF R3D + 2k LT
Weapon MG R3D + 2k HQ
Weapon MG R3D + 2k 422
Weapon MG R3D + 2k LT

[TD="align: right"]300[/TD]
[TD="align: center"]7[/TD]
[TD="align: center"]3[/TD]
[TD="align: center"]8[/TD]

[TD="align: right"]225[/TD]
[TD="align: center"]9[/TD]
[TD="align: center"]4[/TD]
[TD="align: center"]10[/TD]

[TD="align: right"]200[/TD]
[TD="align: center"]10[/TD]
[TD="align: center"]4[/TD]
[TD="align: center"]12[/TD]

[TD="align: center"]??[/TD]
[TD="align: center"]??[/TD]
[TD="align: center"]??[/TD]

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If Recording ProRes only, in-camera playback is not possible?

 

[Marcus Friedlander]

I haven't yet shot with a WEAPON so I can't say for sure, but the word around reduser is that shooting with dual codecs costs 1 point of compression. So 24p @ 6k 3:1 R3D recording becomes 24p @ 6k 4:1 R3D + Prores 422 HQ recording.

I also don't know about the playback question but that is an interesting question that I don't think has come up yet? I'm sure a WEAPON owner can chime in though.

 

[Alex Bros]

For CF Weapon:

________________6kFF @59.94fps___6kFF @23.98fps___5KFF @95.90fps
2k ProRes 422 HQ_______9:1_____________3:1_____________12:1
2k ProRes 422__________8:1_____________3:1_____________10:1
2k ProRes 422 LT_______ 8:1_____________3:1_____________10:1

Had to put those underscores in to keep the nice formatting.....

Yeah the camera currently does not play back Prores.

 

[Andrei Goaga]

But does this mean that for MgWeapon the faster mini-mags will help with compresion when ProRes is active?

Mg can't go higher than 225MB/s - is that bandwidth limit only for r3d? If so, that means the ProRes writing can utilize the extra 75MB/s for the 300MB/s cards? Or both streams combined are limited to 225MB/s?

 

[Blair S. Paulsen]

Pretty sure that the 225 for Mg and the 300 for CF are max write rates within which any and all formats must fit. On CF Weapon I've shot 6K HD at 24fps 4:1 RedCode and UHD ProRes 422 simultaneously. It rocks!

Cheers - #19

 

[Christopher*Seguine]

Thanks for the info Alex! 6kFF 24p 3:1 with a 422 prores would be useful, DNX would be better, hopefully that is coming soon.

If you you shoot varispeed - 5k 96fps in a 24p project for example, do you end up with a correctly matching 24fps prores file or is it 96fps?

No ProRes playback is not great, kinda kills the usability for doing episodics that just want a 4k prores 444 master.