Storage after Redcine

K

Kjetil Haugen

Active member
Curious about the actual file size for the 4.5 k images once they have gone through the Redcine process..

I'm not really that familiar with this kind of high quality footage. If I understand correctly DPX and CINEON seem to be the choice of the industry... So after the content of a 1 hour hard drive mag is copied over to a computer and processed to lets say 4.5k DPX, how much storage is needed for THIS footage?

I feel outputting 4.5k would be a great advantage and then crop it down to 4k. This way we can use the extra pixels for fine-tuning framing and head-room. But of course, this adds to the storage and it would have to be done at a DI house equipt with more horsepower!

Love the idea of Redcine by the way!
 
if you are shooting with a mag drive that holds 1 hr you are shooting using the compressed wavelet codec ... if you convert that to 4.5k to DPX/cineon and then expect to edit it !!! you are talking ???? HUGE ... so huge it hurts my brain thinking about it ...
i'll stay with a compressed wavelet thru editing !!! and put several hrs on a terrabyte ...
 
The idea is to keep the data stream low throughout the chain unless you NEED to save as 4k DPX files for a studio release. But you always have your original digital cinema negative (REDCODE RAW) when you decide that storage is not an issue (holographic?) or you sell your stuff to Warner Bros.

Jim
 
No I would edit offline of course with smaller files. But in the end these files has become 4k, so I'm talking about the final output files. The ones that end up on 35mm.
 
I should probably add that I'm from Norway and here, this camera would most definetly be used in motion picture project for cinema release... It is what we have been waiting for! 35mm kills our budgets... So I'm sorta wondering how this would practically work. There are different departments to consider... The editor does his thing... hands it over to the DI people who color correct and scann to negative.

Might be early in the process to ask this question..
 
Kjetil Haugen said:
If I understand correctly DPX and CINEON seem to be the choice of the industry... So after the content of a 1 hour hard drive mag is copied over to a computer and processed to lets say 4.5k DPX, how much storage is needed for THIS footage?

Love the idea of Redcine by the way!
Click to expand...


It would be near or over 1GB/sec. So 10 minutes of footage would be approximately 600GB
 
Thanks. I know they scan 35mm to 4k and use Luster for color grading at this DI company I know. So I'm guessing that they have that storage capacity... Or is there something I'm missing here? :)
 
Nope, dont think your missing much. Lots of storage is relatively cheap, it's the speed of the RAID's that is expensive.

Check out HUGE Media Vault 4440. Its a Quad 4Gb Fibre Channel RAID capable of 1.5GB/sec.

HUGE SYSTEMS make great products and I just cant say enough great things about how incredible their support is. Until something significantly cheaper or better comes along Ill never look to another company for my high performance storage.
 
Emery Wells said:
Nope, dont think your missing much. Lots of storage is relatively cheap, it's the speed of the RAID's that is expensive.

Check out HUGE Media Vault 4440. Its a Quad 4Gb Fibre Channel RAID capable of 1.5GB/sec.

HUGE SYSTEMS make great products and I just cant say enough great things about how incredible their support is. Until something significantly cheaper or better comes along Ill never look to another company for my high performance storage.
Click to expand...

You've talked about HUGE a few times now... and I like HUGE. They make good stuff, and we have several customers with HUGE systems.

But the raw disk I/O is only part of the problem once you're talking about 4K. Bus speeds, I/O contention, Interups requests, Texture size and Framebuffer on the GPU, graphics drivers, OS overhead, etc, etc.

Streaming that kind of bandwidth is never just as simple as hooking up a disk subsystem that can theoretically handle the bandwidth and pressing "play." It's an entire system that has to get spec'd and put together.

Have you actually seen this subsystem streaming that kind of bandwidth - sustained? If so - what software, what graphics card, and what CPU?

Anything over 1GB/s sustained is not easy to do.

RED at 4K is 1:1.90 - 4096x2160. Fortunately, that is easier to do and dips (only slightly) below the realm of science project.

Lucas
 
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