Here's a great article on 4K video editing workflow, and if you need RAID solutions or a new powerful workstation built to handle video editing you can check out our selection of high quality G-Tech storage
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Easy 4K Workflow
DigitalFilms.wordpress.com by Oliver Peters
In the last post I questioned the visual value of 4K
. However, it’s inevitable that more and more distributors will be asking for 4K deliverables, so you might as well start planning how you are going to achieve that. There are certainly plenty of demos showing how easy it is to edit 4K content and they use iPhone video for the demo material. The reality is that such footage is crap and should only be used when it’s the only camera available. At the low end, there are plenty of cameras to choose from that work with highly-compressed 4K images and yet, yield great results. The Blackmagic Design URSA Mini, Sony FS7 and Canon C300 Mark II come to mind. Bump up to something in a more cinema-style package and you are looking at a Sony F55, RED, ARRI or even the AJA CION.
While many cameras record to various proprietary compressed codecs, having a common media codec is the most ideal. Typically this means Apple ProRes or Avid DNxHD/HR. Some cameras and standalone monitor/recorders can natively generate media in these formats. In other circumstances, it requires an interim transcode before editing. This is where system throughput becomes a big issue. For example, if you want to work with native 4K material as ProRes 4444, you are going to need fast drives. On my home Mac Pro tower, I have two internal 7200RPM spinning drives for media striped as RAID-0. In addition to these and the boot drive, I also have another internal SSD media drive. When I checked their relative performance with the AJA System Test utility, these clocked at 161 write /168 read for the RAID-0 stripe and 257/266 for the single SSD. That’s good enough for approximately 27fps and 43fps respectively, if the media were large 3840 x 2160 (2160p) ProRes 4444 files. In other words, both drive units are adequate for a single stream of 2160p/23.98 as ProRes 4444, but would have a tougher time with two streams or more.
Unfortunately the story doesn’t end with drive performance alone, because some NLEs handle real-time playback of 4K media better than do others...[continue reading on digitalfilms.wordpress.com]