What studies, evidence are you citing to make this claim? Below is what I see from Wikipedia, which indicate much higher savings in efficiency than you are saying - maybe over 60% for UHD. I am not claiming you are wrong, but it appears you are differing from at least some of the literature.
My experience as well as some doom9 discussions.
Unfortunately you did not understand that I said properly. Despite being H264 or H265 video encoders can work different. All realtime encoders in cameras have lower efficiency compared to best software encoders.
Same is especially true for H265. As for now x265 software encoder is not mature yet (providing not much plus compared to x264). And hardware encoders are simplified and first generation (Panasonic SD1, for example, also had similar encoders but for H264, they were much worse than any modern ones).
@chopnshoot: The 16-50mm S lens is excellent, but heavy. For a light gimbal setup, you should consider the NX 12-24mm, which is a very sharp UWL and it's reasonably priced.
"For camera encoders it is around 20-30% difference, no more."
What studies, evidence are you citing to make this claim? Below is what I see from Wikipedia, which indicate much higher savings in efficiency than you are saying - maybe over 60% for UHD. I am not claiming you are wrong, but it appears you are differing from at least some of the literature, some of which I have read.
Perhaps the cited studies were software tests? If so, where are the in-camera tests. We only have two commercial (consumer) HEVC hardware encoders - the NX1 and NX500 - so presumably these are the basis for your claim?
The claims about HEVC efficiency are a big deal; it will be the standard for 4K blu-ray, so just saying there is a 20-30% gain is itself a big deal.
From http://en.wikipedia.org/wiki/High_Efficiency_Video_Coding
"The study compared HEVC MP with H.264/MPEG-4 AVC HP and showed that, for HEVC MP, the average bitrate reduction based on PSNR was 44.4%, while the average bitrate reduction based on subjective video quality was 66.5%.[57][58]
In a HEVC performance comparison released in April 2013, the HEVC MP and Main 10 Profile (M10P) were compared to H.264/MPEG-4 AVC HP and High 10 Profile (H10P) using 3840x2160 video sequences.[61] The video sequences were encoded using the HM-10.0 HEVC encoder and the JM-18.4 H.264/MPEG-4 AVC encoder.[61] The average bit rate reduction based on PSNR was 45% for inter frame video.[61]
In a video encoder comparison released in December 2013, the HM-10.0 HEVC encoder was compared to the x264 encoder and the VP9 encoder.[62] The x264 encoder was version r2334 and the VP9 encoder was version v1.2.0-3088-ga81bd12.[62] The comparison used the Bjøntegaard-Delta bit-rate (BD-BR) measurement method, in which negative values tell how much lower the bit rate is reduced, and positive values tell how much the bit rate is increased for the same PSNR.[62] In the comparison, the HM-10.0 HEVC encoder had the highest coding efficiency and, on average, to get the same objective quality, the x264 encoder needed to increase the bit rate by 66.4%, while the VP9 encoder needed to increase the bit rate by 79.4%.[62]
So in camera at 20-30% is almost equal to 100 Mbits in H264.
Isn't it a fact about H265 that it captures at half the bitrate of H264 but with the same quality? Meaning then that an 80 Mbits in H265 is the same as 160 Mbits on H264?
No, it is not fact. If you get good software H264 encoder and use two pass slow encoding it'll be most probably better than H265 camera encoder at same bitrate.
For camera encoders it is around 20-30% difference, no more.
Isn't it a fact about H265 that it captures at half the bitrate of H264 but with the same quality? Meaning then that an 80 Mbits in H265 is the same as 160 Mbits on H264?
Both Samsung Pro zooms are really good.
the prospect of usable AF opens up a lot of possibilities for a one man band gimbal work. i really like my 18-35mm lens but i'm thinking if I might not miss it on the wide end of the 16-50 at 2.0.
Now I'm debating do I adapt my Sigma 18-35mm or sell it to get the Samsung 16-50mm.
It depends if you need OIS and fast native AF.
Just ordered the NX1. Now I'm debating do I adapt my Sigma 18-35mm or sell it to get the Samsung 16-50mm.
Hopefully the bitrate bump is a sign of log coming soon.
I'm about to jump off the black magic bandwagon for Samsung
I ran around run and gun for 9 hours yesterday with my NX1 on a Ronin with the 16-50 f2-2.8, and I have to say the autofocus on this combo is obnoxiously good. It just works.
My only remaining complaint with the NX1 is there needs to be a good log/low contrast mode, because when I reduce saturation or contrast settings, nasty stuff happens to the recorded image. It sure seems like there's more DR in the sensor that they're not harnessing.
"Includes the 4 most popular Pro Suggest presets (Cinematic, Memories, Gorgeous Night, and High Speed)"
Anybody knows where this feature is? Thank you.
FHD si now amazing - detailed and sharp, but there is some aliasing (you can see it right on the build): http://ikt.sk/nx1-fw133-1080@60p.png
I look to this, look oo new Panasonic Castrate G7, look again at Samsung.
fw 1.3 vs 1.22 bitrates:
@geoffcbassett Is this for up to 60p only, or up to 120p?
Better 1080p. They increased the bitrate ( from 60 mbps to 80 mbps), it downscales from a larger source, seems to have less aliasing, and far FAR better low light performance. It retains detail and has noise, it no longer turns into mush. I'll post a test when I get out of work.
What exactly is the improved video quality in 1080 60P? Is it a higher bitrate option for compression, or is it actually a better picture (ie. finer detail, no aliasing from line skipping)? Better yet, could you post a sample?
Thanks.
"Peaking is still not available while recording with adapted lenses."
Sure it is.... just press the up arrow to turn on the display on the LCD and then press the focus peaking icon just under the audio level icon on the left. You have to have focus peaking enable in the menu as well prior. As this is only icon accessible it is not currently possible with the EVF during recording or standby record. You can enable it during photo mode by press OK button in the center for dial and have peaking appear in the EVF, so it seems it Samsung is making this choice for whatever reason. I really wish they would let use Key Mapping to enable focus peaking in record mode, but you currently can't Key Map focus peaking or what we need which is Standby/Record Peaking in Key Mapping - I believe...
"Added NEW MF Responsiveness mode (Capable of setting to Low, Medium, High focus angle in manual focus mode)"
Is this what I think it is? Ability to customize focus throw on lenses? :) Might invest in some samsung glass now!!
Here's a quick test of the RS in 4K. Definitely improved.
The 120p mode now records simultaneous audio and is a much higher bitrate. I think the 1080p 24 mode is improved as well, but need to test it more.
Also: -Remains in Stand By mode after recording So simple, but so beautiful to see :)
I can confirm histogram is now working while recording. Peaking is still not available while recording with adapted lenses.
It looks like you're new here. If you want to get involved, click one of these buttons!