sandro

Apparently the a6300 wins by a lot in low light.

I wish it can fixed but i really have doubts. Why would a nr bring blue lines? It seems more like something produced by electronics/hardware than a software thing.

I seriously don't get they the nx1 is do bad in lowlight while the a6300 can do this 

I mean there something wrong with the sensor design or we really need to remove that NR.

2 hours ago, iamoui said:

https://***URL not allowed***/sony-a6300-low-light-test-video-a-mini-a7s-ii-for-much-less/

Wow... how come the NX1 can't even do good 3200?

11 hours ago, Otto K said:

Well, for NX500 it seems CPU freq is from 100MHz to 800MHz:

[root@drime5 debug]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq  
800000

[root@drime5 debug]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
100000

Someone with NX1 could see what's there.

I need the telnet software to test.

53 minutes ago, Mattias Burling said:

I can sell you two Nikkor f1.4

which ones?

1 minute ago, SMGJohn said:

I literally had a very hard time seeing it, I tried using one white and one purple background to spot them sadly my Canon 400D is too old to shoot fast enough in the dark had to use my Xperia Z.

No idea what is going on in photo mode, but in movie mode they are visible somewhat at least I think it is what you mean. Its hard to take pictures of it though

yes these are the ones.

3 hours ago, mercer said:

Looks great Bror. Beautiful lens and composition, but I am a sucker for slow rack focusing. What camera did you shoot that with?

If you already have the Nikkor 35mm f2, then why are you even looking for another lens in this range... Get some more Nikkors... How about the 50mm 1.2 or 85mm f2... Or the 20mm f2.8? There are so many great Nikkor lenses that you should be concentrating on building a nice set of those... IMO. 

I need more light and nikkors are not cheap...

5 hours ago, chauncy said:

"with what editing software? Adobe premiere afaik doesn't support hw decoding of hevc"

latest update of adobe cc2016 does. Davinci's latest does as well

are we talking about hevc support or gpu decoding? they're not the same

5 hours ago, Chant said:

It was in a cpu config file. But in early firmware, I am plotting the changes and original values to see what sort of leverage can happen with them.

 

This is something that I have also been looking into. With luck it is just the change of an output flag and see if things can be pushed to a higher limit. HEVC and other compression systems are less intensive with less compression, so in theory it should be able to bump up to the bus limit and have less compressed files. In the later firmware the change from 15fps to 25fps for the raw output sort of shows the ceiling of bandwidth the processor can handle. Give or take 30MB raw file x 25fps data stream is 750MBs/6000Mbs

My goal is to see how close to the spec of a red weapon the nx1 can be. HEVC is sort of a pain but the way it works is more like the wavelet based .r3d files when HEVC is at lower compression rates. But the more I find the more interesting things get. And the things they did for this camera make it vastly unique compared to a canon or a sony.

 

The complexity of the nx1 makes that quite hard, if I am correct and there is an fpga/cpld core on board it gets more tricky. I have seen some signs though. No confirmation yet. More work will be done tonight on the dive though. I have compiled a large data sheet already on the things I have found in the first firmware update. But going though the code takes time.

 

And if people are having issues with HEVC I highly recommend getting a GTX960 so far the only gpu with fully enabled on board HEVC encode/decode and boy does it work well. And they are not very expensive. If you go by how HEVC does compression, when you transcode it would be in the Gbs if the data rate is doubled on camera

with what editing software? Adobe premiere afaik doesn't support hw decoding of hevc

39 minutes ago, Jimmy said:

If you need help with the UI, just message me... I design for Android, so should be fairly similar.

i can help as well

I also have the nikkor 35 f2 and I love it.

I love the cast.

I always had a thing for Samyang lenses. What worries me is that some lenses are only available for mirrorless mounts and the new ones not even for the NX mount I would feel more safe investing in lenses for the Nikon F mount you know?

I clearly saw them at ISO 3200 in video mode in dark areas... I will try to take a pic somehow.

49 minutes ago, mercer said:

Okay, primarily for photos in low light. How much do you want to spend?

I would say €300 at most (sigma 30mm 1.4 used price)

47 minutes ago, SMGJohn said:

You can always get a cheap Thermographic camera and that way you can see how much it heats up during tests, however from my own experience I have not had any issues, its gotten real hot but still worked just fine and I did a lot of shoot with it once without little breathing in between.

There should be possibility to dump the RAW files to the card like Magic Lantern, do remember the live view is 2k~ at 50/60fps if choosen in the menu also I cannot see the 3200ISO blue lines in the live view that a lot of folks here seem to complain about, its clearly not the censor and more in the noise reduction and probably compression too.

I honestly never tried to see if the lines are on the livieview...what if they can't be seen due to size and amoled?

Update: just checked through the EFV and yes blue lines from high iso are also in the live view

43 minutes ago, mercer said:

In my opinion you want to get lenses from the same manufacturer from the same lens line up. If I were you, I would start investing in the Rokinon/Samyang/Bower lenses. Or if they're a little too pricy for you, then breakdown your lens line up into interior and exterior lenses. By doing this the slight difference in lens characteristics can be negated. Btw, what type of video work do you do? This also can help to steer you in a specific direction. 

This one is for pics in low light

Great!Anything else? Maybe narrower focal range?

which is the best fast prime (1.4-1.8) to use on the NX1? Manual lenses are fine. Should be between 24-40mm or 50mm if necessary. Anything cheaper than the sigma 35mm 1.4?

4) and 1) are definitely my top choices. It's a shame a camera like this is unusable at 3200.

I think the problem is also hw. It will probably use hw decoding for h.265 and only work on specific settings. Unless they wanted to add it later the gpu won't be able to process anything above 8bit 420 and specific bitrate.

1 hour ago, SMGJohn said:

If I remember correctly from working with GH3 footage the banding was nowhere near as bad as on the Samsung NX1 of course Samsung fixed a lot of the shitty colour bleeding and terrible banding issues with the newest firmwares but the banding still persists, its there if you pay attention and you definitely will see it when you work with the files.

I can apply the LOG profile from EOSHD to the NX1 footage with the proper settings in place, if I push colours too much I see banding, I have some GH4 footage I shot before I sold it duo to the low light performance being unsatisfying, I can push the colours quite extreme without seeing any form of banding, even in the 1080p footage. Obviously the NX1 has way better colour range than the GH4 with Cine-D and I sadly its almost a year and half since I sold the GH4 and back then we had no idea there was an actual LOG profile coming for it at all, not even the news about the beta LOG being worked at. 

Its pretty clear its the HEVC codec doing it, I have reproduced some of the nastiness of the HEVC by using clean high bit depth images with gradients applied and noise in sections to see what the codec does to it, indeed the codec does cause banding at 8bit output, it also smoothens out noise in low detailed areas, I further checked with a still picture shot at 1600 ISO with some fine grains, again I see the same the codec smoothens out the flat areas, in high detailed areas it leaves but every area that has no details the codec smooths out, the earlier versions of HEVC were terrible at detecting detailed areas its gotten better. I will just assume here the NX1 uses the earlier version of the HEVC codec because its clearly destroying details in out of focus dark areas were the codec is struggling to detect details. It gets worse when you lower the video bitrate as well of course the in-camera noise reduction in video does not help at all just makes the issue far worse than it should be. 
Its managable but if we can turn off noise reduction in video, that would be a life saver for all of us because many of us does not have the luxury of light to shoot one or two stops over. Some of us are forced to shot stops under, its either that or very high ISO and we all know what happens then... 

I'm not sure we're talking about the same thing. You may be referring to the banding in colors due to compression? I'm talking about the blue bands you get at high ISO, from 3200.

What do you guys think of the fujifilm 18mm f2 as a fast wide angle lens? I see it has an aperture ring so it could be used on the nx1 easily right? It's fairly cheap.

oh wait...just realized it's for fuji mirroless cameras...

15 hours ago, kidzrevil said:

Could be. It IS downscaling from a 6.5k sensor instead of doing a 1:1 crop of the sensor. Could be how it downscales

I think the GH3 used to have this banding issue...and I guess it was the just sensor.

what if it's just the sensor? You get lines at 3200 not grain.