Pavel Mašek

I am wondering if you do not have problems with compression artifacts with underexposured image. It is shown on this example:

It is OK?

Standard gamma can be also tweaked via picture profile settings in photo mode (change sharpness, hue, etc). So basically video uses setting of Standard profile you set in photo mode (BTW so you can film directly in BW, nostalgic,.... picture profiles). I know that Standard profile has limited DR, but I like the color comes from camera...

I will try to simulate some stressful scenes and try different settings.

Thank you very much for advise Hene1 ... 

Thank you Ricardo for feedback.

It is strange - I would never imagine that it can happen just to particular unit (even bitrate of video is OK - 80-85mbits) and in most of the situations it is fine. It become visible in situations where are lot of details (leaves, grass, etc) - just similar to uploaded videos.

Has anyone else same problem? Is it normal that NX1 sometimes artifacts so much?

Maybe I should also try 3840 24p which should offer more bitrate per frame and use Dynamic DR gamma which provides slightly softer image (in term of details) than Sdandard mode...

Thank you for very much. What I remember I shot both 2nd and 3rd video (sky macroblocking) with 0-255. 2nd video with "yellow tree" was also shot in 4096 24p (download link is here http://we.tl/KG9fSQr9yn ) and it is true that result is better but the artifacts are still visible. I just want to figure it our if the problem is just with my camera (I know it may sound strange - how can be codec broken just in my camera?) or it is usual for NX1 and codec is not able to handle these "stressful" situations.

Hi NX1 users, I would really appreciate I you could check attached raw H265 videos downloaded directly from camera (no transcoding) and let me know if you have experienced similar issue - serious macroblocking and lot of artifacts. I thought it is normal for NX1 when is codec pushed to its limits, but other users on FB already told me that it is not normal.

 I used this settings: fw1.4 (one clip is older with fw1.3) in 4K30p, PRO settings (80-85mbits), standard gamma, sharpness all way down, luminance 16-235

- really serious here (see chapel and grass) http://we.tl/N8985ZGfnw 

- visible macroblocking on the sky http://we.tl/yNH8UFMKYl  and here http://we.tl/OUTmb0j4SP

I really appreciate your help!

Sandro, this 120 fps bug should be fixed in latest firmware. Also (with Samsung lenses) it stays in MF mode after recording video.

Hi, guys. Ulises Rodriguez Pomba from NX1 Group on FB created a public document to research and complete by anyone about features and request for NX1:

https://docs.google.com/document/d/1pwCklH7KMPvGlOWiy9RjGKUKaQnD7gJ-hiW7xotVJ6o/edit

On this FB group there is one guy who is very close to people who develop NX1... so Samsung engineers will probably check that (I hope so)

​Thank you. At first I was wondering if it is relates just to my camera and then check multiple settings. Finally I realized that if problem is not in photo mode and just in video mode so it may be affected by encoding system and voila... 

Strange it is affected by focal lenght. 

I am trying to promote this video ( https://www.youtube.com/watch?v=q9XF6UTYCe0 where is also link to this bug) - already sent it to B&H support (no answer at all), Facebook NX1 group, post it here ... unfortunately I do not have any contact to Samsung. Andrew mentioned that he has contact to relevant persons but it seems he does not read this thread anymore...

Check my video and description - https://www.youtube.com/watch?v=apHvTL7Rt-0 . Problem appears just in NTSC.

Check my video and description - https://www.youtube.com/watch?v=apHvTL7Rt-0 . Problem appears just in NTSC.

​Thank you. Unfortunately I do not have any connection to Samsung... so I hope Andrew Reid read this :-)

I am not happy that some of so clear issues were not fixed.

I had to create this short video and hope that some of Samsung NX1 programmers will watch it.

 https://www.youtube.com/watch?v=q9XF6UTYCe0&feature=youtu.be

​It only works for Samsung lenses. I switch to EVF, than go to video mode and then set AF to MF (via left upper botton for AF, becuase AF ON button does not work). Then is lens set to MF and focusing peaking is also enabled. Unfortunately there is some bug so it does not work properly as you can see in video....

Focus peaking "works" in video mode in EVF but ... it is not usable. I hope they fix it soon. See this https://www.youtube.com/watch?v=apHvTL7Rt-0

​Yes, it is there "higher bitrate for 4K and 120fps1080p". I think that 80mbits for 1080p60fps is almost OK.

10bit would be great but I really do not believe that they would add something like that... but it would be great anyway. 

I saw that list some time ago, I just wanted to report obvious problems. New features are great but eg. focus assist in video mode or EVF switch are much important for now...

​Here is updated wish list

----- I still miss (realistic expectations) --- 

- EVF switch in video mode
- magnification focus assist for MF in video mode + customization of this feature would be nice (eg. magnified image would not cover whole screen but only selected part (using touch screen)) seehttp://www.eoshd.com/wp-content/uploads/2011/12/DSC01519.jpg
- with Samsung lenses: camera does not remember focus settings between modes + it still jumps from MF to AF setting after recording (it should not still return back to default AF) - eg. manual focus should remains manual focus even I switch between photo/video mode or I stop recording.

- with MF lenses: focus peaking should be permanently on or off (it should not still return back to default). Now it neccessary to turn on peaking always after record is finished.  - these issues above mean that user cannot record video with EVF and focus peaking!

- crop in video mode
- slowmotion on custom buttons / switching between two favourite video modes
- fluent changing microphone gain levels during recording (not stepping)

----- I still miss (no so realistic expectations)
- higher bitrate for 4K and 120fps1080p
- 240 fps 1080p (at least in crop mode)
- RAW video

This new bug should be fixed https://www.youtube.com/watch?v=2ahoIXyQZ4w

​Andrew, any chance you could pass this to Samsung developers?

I have briefly checked new firmware:
- Quality of 1080p60fps is better - image is more detailed and bitrate in highest settings is now 80mbit/s (40mbit/s before), still aliasing
- there is now direct mode for 1080p120fps, so it is now recording also sound and all 120 frames - not just slowmo 60fps
- great that video standby mode remains after video recording
- AF is probably better, but too soon to say (I just have 30mmf2, probably better with 16-50S)

That is very interesting! D750 is probably the best but NX1 is very close and has the better blacks... Great thing about that is you can always brings lot of informations from shadows and make HDR from every photo you take with ISO 100. 

But look at 6D! Just awful...

​Yes, totaly understand...

VLC is still same but I found that PotPlayer plays H265 without problem http://www.videohelp.com/tools/PotPlayer on Windows.

Powerdirector 13 has smooth playback of 80Mbit H265 videoclip from NX1 (on my almost 2 years old  i7 and mid Nvidia card)

BTW - Unfortunately I have noticed that Powerdirector introducing artifacts to compressed video - I made comparsion on same 4K clip from GoPro 4 Black compressed by Powerdirector (h264 30Mbits) and Sony Vegas 13 (with debug frame server to V dub - x264 30Mbits). Clip from Vegas was much better without artifacts.  I do not know if also affect clips from NX1 but it is possible (I am keen to compare it with original video from newest VLC). Unfortunately it is only video editor now which can be used for editing H265 clips without transcoding moreover with smooth playback (quality is lower indeed).

"It’s still the best image quality per cubic centimeter" . Please try to compare with GoPro 3 Black and you will see that (at least in terms of resolution) it is not true.

@zach

 

and you can't agree that there may be a reason they don't/can't/wont add it?

 

you ASSUME it's a possibility.  just as we ASSUME each new Canon won't suffer from moire, yet it does.

 

my next question is, if the HERO 4 doesn't have a exp. lock, will you refuse to buy it? be honest

lets just pretend what MIGHT be possible of the HERO 4....144mbs or more, true 4k, raw, 4 hour battery, and a new interchangeable lens system.  will you NOT buy it if there is no lock? 

144mbs 4K would be useless if you have flickering image in some situation. So I would probaly wait on GP5 :-)

Why did they add Protune into GP2? 

And here comes the answer from GoPro support:

Hi Pavel,

Thank you so much for your feedback. We will definitely pass that on to our development team for consideration in our future products!

They have not said anything about coming out with something like that at this time.

To be kept up to date on any new product releases, please be sure to sign up for our online newsletter:

http://gopro.com/newsletter/

Please let us know if you have any further questions.

Many Thanks,
Brandon R. 
GoPro Support
gopro.com/support

Well it seems that we really have to wait on GP4 :-(