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Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 8:30 am
by OlegMush
it is normal that in the dark, at 800 and 1600 asa, horizontal and vertical stripes are visible that look more like squares and there is also a horizontal line that divides in the middle into the red and blue sides?

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 1:02 pm
by Robert Niessner
Are you sure you gave us all the information needed to assess the problem?

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 1:37 pm
by OlegMush
Robert Niessner wrote:Are you sure you gave us all the information needed to assess the problem?


it looks something like this
I made the picture lighter so that you can see it better
it's just that you can see it on my bmcc screen, especially in the dark

https://drive.google.com/file/d/11pu00l ... sp=sharing

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 3:24 pm
by Robert Niessner
And the camera model is?
The firmware is?
Recording mode is?

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 3:29 pm
by OlegMush
Robert Niessner wrote:And the camera model is?
The firmware is?
Recording mode is?


I apologize for not writing about this at the very beginning

bmcc 2.5k ef
firmware 2.1
raw

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 8:29 pm
by Robert Niessner
Oleg, can you share a few CDNGs from those shots?

In general the BMCC isn't a night owl and afaik there have been some variances in the noise behavior from sensor to sensor. Mine seems to be pretty clean but there have been others looking more like yours.
Does the fan in your camera still work? You should be able to hear it blowing when holding close.

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 9:28 pm
by lee4ever
you could try this viewtopic.php?f=2&t=24688 ;)

Image

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 10:46 pm
by OlegMush
Robert Niessner wrote:Oleg, can you share a few CDNGs from those shots?

In general the BMCC isn't a night owl and afaik there have been some variances in the noise behavior from sensor to sensor. Mine seems to be pretty clean but there have been others looking more like yours.
Does the fan in your camera still work? You should be able to hear it blowing when holding close.


possibly bad examples, but this is where the mesh is best seen
in the rest of the videos, where the face is lit by one lamp, everything seems to be in order, except for the shadows again the mesh

https://drive.google.com/file/d/1VkwKIR ... sp=sharing
https://drive.google.com/file/d/1jn8oBs ... sp=sharing


Yes the fan is working, blowing well
I don’t know if everyone’s like that, but when you press the camera's power button, it doesn’t turn on right away. It will first light up showing a black backlit screen, then turn off, turn on again and start working normally.

Somewhere on the forum I read that this grid disappears during rendering, maybe I'm wrong

and after rereading the forum again, I realized that stripes seem to be a normal phenomenon, you just need good lighting

Re: Horizontal and vertical lines

PostPosted: Wed Jun 30, 2021 10:56 pm
by Robert Niessner
OlegMush wrote:I don’t know if everyone’s like that, but when you press the camera's power button, it doesn’t turn on right away. It will first light up showing a black backlit screen, then turn off, turn on again and start working normally.


Then you are pressing the power button too long. To switch on just press it gently and the camera will turn on. Long press for switching it off.

Re: Horizontal and vertical lines

PostPosted: Wed Sep 21, 2022 5:41 pm
by Jarateng
I am experiencing this. I have tried to flash firmware but no change. Any ideas of what to do ?
BMCC EF. 2.1fw