Ideally, I keep two copies of the original DNGs from camera and a single copy of the losslessly compressed versions, and because HDDs are so affordable I tend to just keep stuff around. I don't use lossy compression but I do losslessly compress DNGs from my Bolex all the time. Also depends on how much footage you're processing and how good your machine is. If you're copying from one RAID0 to another RAID0 then it is pretty fast. If you're copying from and writing to the same 5400RPM laptop drive then yes, it'll take a while. Compatibility is reduced as well, on account of Adobe still not having great compressed CinemaDNG support.ĭepends entirely on what you're reading from and what you're writing to. You mean, besides lowering the quality of your footage? Kind of.
#SLIMRAW DNG LOG ARCHIVE#
It's sort of just become my go to process for archive and offloading my BMCC footage. I find the Lossy compression sufficient enough that I usually don't need to archive my originals, although this simply comes down to personal preference/workflow. ( that in addition to some other awesome features like 2x downscale and checksums ) I will run all my footage through it because I gain all the benefits of extra compression with negligible ( if any! ) penalties in terms of speed. So good I honestly don't ever find myself just offloading the footage on its own. Performance is also very closely attributed to Disk Speed ( both source and target disk), converting footage directly off the SDD with a SATA3 interface or USB 3 definitely helps. With a relatively modern system you can do even better, sometimes 2x-4x real-time performance.
This obviously depends on your system specs, however having tested on a variety of systems I will say that for the most part you can expect at LEAST ~realtime performance ( 45 mins of RAW will be 45 mins to convert )
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