120fps at 4K ?

Haakon said:
. With film, there is always the chance that something can be off., a minor backfocus misstep, color temperature shift...
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Hi Häakon,

To be honest this is a far bigger issue with traditional video cameras. Film lenses don't have any back focus to adjust, so unless somebody has either dropped the lens or dismantled it, or the camera nothing will change. PL lens mounts are very accurate. As far as color balance, Stanley K shot Barry Lindon with tungsten balanced film and never corrected for daylight.

Stephen
 
Hi Stephen,

The point I was making is that when you're shooting digitally, you have a way to see exactly what you're getting as you shoot. With film, you don't. That's all. :) I picked a few issues out of a hat, there are handfuls more. Of course, shooting film has its advantages too. It is nice that we have lots of great tools with which to make beautiful pictures. If you like film, great! If you prefer shooting digitally, now there are new choices for those who prefer that workflow but don't want to make sacrifices in quality. It is a good time to be alive.

Best,

Häakon
 
Just speculation on my part but for the RED-RAM I think it reasonable to think that it could be something similar to the Gigabyte iRAM which uses DDR-RAM on a daughterboard (PCI in this case) as a very fast pseudo hard drive with battery backup (for a limited time but it's designed to live in a PC).

This gives you very high theoretical throughput and with the right interface and battery backup could work as a capture device for the high speed footage options from the camera. Sure, it wouldn't store 90min but then again you'd only be using for those shots that needed it after which you'd immediately transfer the footage to a normal hard drive.
 
An alternative to RAM Drives would be storing in the motherboard's volatile main memory (>64GB) and dump to disk afterwards.
This sort of capture is normally DMA with low CPU.

I'd expect this would be dependant on RED's capture software for high speed data capture and knowing RED they're probably developing/planning a solution light years better than this anyway.
Dave F
 
What I find interesting is the lack of knowledge to deal with the data rates that 4(.5) k raw will provide on the back end. Guys remember that this stuff is going to run at at least 650 MB/s for a 4 k 60 fps stream and for a 120 fps 2k stream it would run at 800 MB/s that means on the low end 60 minutes a terrabyte and 16 minutes a ter on the high end . Thats before demosaicing which is going to blow that data rate up to somewhere around .5 GB/s -. 2.2 GB/s Before you know it your storage costs are going to go out of control just trying to keep hold of both your demosaic and your RAW let alone intermediary files.

That kind of facility structure can be built but you're way out of the league here with SATA enclosures, you're talking large SANs at that point.

These kind of data rates arn't easy even for major hollywood post houses. Think about redcode raw if you're an indy.
 
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