DaveBerg

Yes! I was filming a wedding and the band had stage lights and when the light hit the lens, it went green many times. It was in the middle of the first dance and messed up everything. But these glitches happen only, when the camera has been on for several hours. Anyway, Thanks for everything, I now know, that I`m crazy! It is so fantastic, when people give so much input on forums like this one!

Now this is weird. It looks about the same on my camera! I think I`ve gotten used to high frame rates and my brain just sees a series of frames in 24/25fps footage. A year of filming after movies for sporting events in 100/120 fps messes things up I guess. I totally get your point on less jitter on softer pictures. 25fps on the Sony a7ii (that has very little sharpness) looks way less jittery but viewing frame by frame, isn`t really. After reading Your comments, I started seeing the jitter on movies and music videos. Everything looks like crap now. I took a 4k clip, converted it down to 720p and it is way WAY smoother. However..my camera is defective and runs slow and drops frames when I use it for a long time non-stop and in hot weather.Or its my old memory card. I found a lot of old material from a hot summer. Thats probably why I thought that it sometimes is and sometimes isn`t jittery. I just saw the difference in the moment. Jeez I feel like an idiot here While I`m making a fool out of myself, another question. Does your NX1 turn the picture all green sometimes. Again, it dose it when I`ve used it for a long period of time in a row and hot weather. Puff, and everything goes green.

Your ?

Thank You very much for all the replies. I`m on holiday, but when I get back to work, I`ll shoot someting in 4k. If i remember correctly, the firmware is 1.41? (the last they made) and the hack I got from this forum here. That is the only hack I have ever installed. The lens makes no difference. I don`t really use any other lenses on the NX1 but the S 16-50mm OIS. However I have some adapters for some vintage lenses and the footage is still jumpy. I usually shoot with the gamma DR setting (sharpness-10; contrast - 6 to -8; satiration -4 to -1; and RGB I have the green a little bit down and blue a bit up. Somebody suggested it in a forum). But I read about the RGB boost option with the normal gamma setting, and will try this out! Gamma DR can`t handle skin tones. It`s almost like it draws over faces (but I also am a bad color grader and a little bit color blind (some shades of blue and green look the same to me and get mixed in with shades of brown :P). When filming people, I use the normal Gamma setting and make a custom picture profile for a flatter picture. Also a side note. When I film in 50FPS (shutter 1/60) and render or convert it to 25 FPS, the footage is smoother than 25FPS shutter 1/50. Its also very smooth when I film 100 FPS and play it back 4 times slower for 25 fps. I know that has to do with the slow motion slower pans and shakes, the difference is still strong. As for the decoder problem. I see the jitter on any device with any program. If it really is all in my brain, its a deeper kind of psychological problem ? I see it only in footage I have filmed ? Thanks again for You`re time and commitment!

It`s possible that it`s a bit faster than the 180 rule, I remember, that I didn`t have an ND filter with me that day, but I had the aperture closed (the far away objects are pretty much in focus) so probably not a lot faster. BUT, I know all about the technical side of cameras and how things work in camera and in-brain. I only break the 180 rule as an effect, and non of the other cameras I have worked with have jitter that bad with the same settings. I have filmed "fast pan metal video type of action" with shutter speeds of 1/400 (with other cameras) and there is no jitter effect like that..just instant "in the face" shake effect. Also 4K footage filmed by others using the 180 rule on the NX1 is nothing alike my camera`s. I basically can film only still shots, where nothing is moving. Walking with the camera is out of the question even if it is on a gimbal. I bought the camera way back, a little after it was released, so I don`t remember if it had the same problem back then, but 1080p was ok. (I had no computer to edit 4k so I never filmed in 4K) Maybe an update did something? In the beginning, they had a lot of updates and bug fixes.

It`s possible that it`s a bit faster than the 180 rule, I remember, that I didn`t have an ND filter with me that day, but I had the aperture closed (the far away objects are pretty much in focus) so probably not a lot faster. BUT, I know all about the technical side of cameras and how things work in camera and in-brain. I only break the 180 rule as an effect, and non of the other cameras I have worked with have jitter that bad with the same settings. I have filmed "fast pan metal video type of action" with shutter speeds of 1/400 (with other cameras) and there is no jitter effect like that..just instant "in the face" shake effect. Also 4K footage filmed by others using the 180 rule on the NX1 is nothing alike my camera`s. I basically can film only still shots, where nothing is moving. Walking with the camera is out of the question even if it is on a gimbal. I bought the camera way back, a little after it was released, so I don`t remember if it had the same problem back then, but 1080p was ok. (I had no computer to edit 4k so I never filmed in 4K) Maybe an update did something? In the beginning, they had a lot of updates and bug fixes.

I only use the NX1 to film 100/120 fps footage, so I found only one clip I filmed when I tested the 25fps. I don`t have the camera with me right now. Here it is: https://drive.google.com/open?id=1mvDSv-O0Oh8cuGVyKi_GXiJbSNqYhzt- It is a 25 fps 1080p clip I did before any hack. DIS is always off, sometimes i turn the OIS on, when I don`t have a gimbal with me, but it makes no difference on the jitter. It`s filmed with the samsung S 16-50mm OIS lens. Now imagine the same jitter but way worse and you`ll get an idea what 4K looks like. Plus the shutter roll on 4K is SO bad, even with slow pans.

So my NX1 is doing the same thing and it is not frame conversion judder. The jitter is there even if I film on a tripod and run across the frame. UHD or 4K footage is unusable. the 1080p is a little bit better. Now I live in Europe, so we have PAL and I usually film 25/50/100 FPS. The weird thing is, that 50 and 100 fps footage is smooth as f*** and 25 FPS sometimes is ok, sometimes jittery. I have all kinds of memory cards (including the fastest ones out there) and it does not depend on that. It makes no difference how full the card is or what weather it is outside. It just sometimes does it and sometimes not! however 24FPS does it all the time. Any clue what is going on? 4K Footage shot by others with the NX1 on youtube looks way smoother than mine.