Puralist
lvl.2
United States
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I own a Samsung NX1, which uses H.265. At first this was a real pain, but once you get used to the workflow, there are a lot of advantages over h.264.
The lack of adaptation of the codec has been a real issue. While PP recently updated their software for native h.265 support, FCXP - still does not.
Here is a good explanation of the H.265 codec:
H.265 codec
One can't really have a conversation about video on the NX1 without first addressing the H.265 high efficiency video codec (HEVC). H.265 is the successor to the virtually universal H.264 codec used by most cameras in this class for the past several years.
The major advantage of H.265 is that it's approximately twice as efficient as its predecessor, making it possible to record video at half the bit rate of H.264 while maintaining the same level of quality. Alternatively, it's possible to maintain the same bit rate used under H.264 but with a substantial increase in video quality.
On the NX1 Samsung has opted for the former approach, choosing to take advantage of the efficient video compression to reduce file size. Empirical data suggests that Samsung's implementation does exactly this. When shooting scenes side by side with the Panasonic GH4 at 4K resolution NX1 files were consistently smaller than the corresponding GH4 files – in some cases as by as much as half. Whether Samsung has managed to maintain the same quality in the process is something we'll look at on the Video Quality page.
Smaller file sizes obviously mean that you can fit more video on a single card, but it also means that you can get away with using slower (i.e. less expensive) cards as well. For example, when shooting 4K video on the GH4 one needs to use UHS Class 3 cards (30MB/s); when shooting 4K video on the NX1 it's possible to use standard SDXC Class 10 cards (10MB/s).
However, what H.265 giveth, H.265 taketh, and there are some definite challenges to using this codec. The primary one: it's new. Although there are software products that work with H.265, as of the time of this review none of the major non-linear editing apps including Adobe Premiere, Final Cut Pro, or Avid Media Composer support direct import or editing of the codec.
In fairness, this issue will sort itself out over time as the codec sees wider industry adoption and better software and hardware support. For the time being however, video files from the NX1 need to be converted into some other format for playback and editing.
Samsung provides an application exactly for this purpose: Samsung Movie Converter. It's a very basic program that simply converts H.265 files to H.264 format. Unfortunately, there's not many positive things we can say about it.
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