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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Very High Red-orange Noise Levels Without Black Shade

I have seen Dragon footy both with and without this characteristic.

David might be correct that if a color science version other than the intended one is used to view footy it might account for the issue.

I was planning to do some blackshade testing before posting or contacting RED. After seeing this thread, I'm now looking for guidance so I don't spend hours going down a rabbit hole. I'm more than happy to put in the time to learn how to manage blackshading, understand when I need to be all over it and in what situations I can just trust that it will look fine, etc. RedUser notes are great and everything, but I'm concerned about spurious correlations (test results that incorrectly identify the causality - i.e. beer leads to heroin) so hard facts from the RedTeam would be much appreciated.

BTW: most camera systems have quite a bit of noise reduction built into the onboard digital signal processing. RED really does want to give you a purer RAW file, noise included. Why don't they just kill it like everyone else? Because you lose detail on shots that didn't require as much NR as the default setting. Its kind of like getting food with the salt already added by the kitchen vs using the shaker on the table to salt to taste.

Cheers - #19
 
Playing around with my new Dragon. Feels noisier than my MX was. Seems noisier than what others posted with the OLD OLPF. That old OLPF looked really clean. I've shot hundreds of hours on MX over 2 years and this seems noisier in the 0-12 IRE range. Not noisier in the mids or above necessarily, just that low range.
 
Kinda glad I'm at the back of the line for the Dragon upgrade. Thanks for working out the kinks fellas! Hope to see things clear up with the noise soon. The increased sensitivity was one of the most important aspects for me.
 
Agreed, sensitivity is key for me too. Ive also seen clean dragon and very noisy dragon. There was one at the red booth at nab that had pretty extreme orange fixed pattern noise on one side of the frame at very high ISO. Granted you probably would never shoot at 12800 iso but just the fact that there is unevenness at some level of the image makes me very nervous to upgrade.


Niko Pueringer said:
Kinda glad I'm at the back of the line for the Dragon upgrade. Thanks for working out the kinks fellas! Hope to see things clear up with the noise soon. The increased sensitivity was one of the most important aspects for me.
Click to expand...
 
Eric Haase said:
Playing around with my new Dragon. Feels noisier than my MX was. Seems noisier than what others posted with the OLD OLPF. That old OLPF looked really clean. I've shot hundreds of hours on MX over 2 years and this seems noisier in the 0-12 IRE range. Not noisier in the mids or above necessarily, just that low range.
Click to expand...

That's exactly how it is. It's only on the low end where the noise is apparent. It also seems worse than MX as I don't remember that much noise on the low end in similar scenarios. I shot with the old olpf and it was much cleaner. While I enjoy slightly better highlights, I like the old calibration better...

Let's hope it's something that can be improved via firmware. No idea why the noise is red/orange instead of neutral....
 
Mark L. Pederson said:
There are only TWO factors. Period.

#1: Sensor Temp.

#2: Exposure time (shutter speed)

And yeah ... it's in the manual. And it's in the HELP in the camera on the newest firmware.
Click to expand...

thanks mark .

is there any sensor temp change warning ? i guess the camera it should remember at what temperature the current black shade has been done and if the sensor temp increase or decrease by a certain value a message should appear suggesting a new black shading ...

make sense?

g
 
Gabriele Turchi said:
thanks mark .

is there any sensor temp change warning ? i guess the camera it should remember at what temperature the current black shade has been done and if the sensor temp increase or decrease by a certain value a message should appear suggesting a new black shading ...

make sense?

g
Click to expand...

Yes, there is a warning of sorts. the Cal: T/E tells you (T being temperature and E being exposure time).

When your temp/exposure is near where you calibrated, these will be green. As you get farther away from the calibrated setting, the green T or E will turn yellow, then orange, then red. Usually you are safe when it goes yellow, but orange and red mean you should probably get the Temp or shutter back closer to the previous calibration, or you should black shade to the new temperature/exposure.
 
Kyle Wright said:
Yes, there is a warning of sorts. the Cal: T/E tells you (T being temperature and E being exposure time).

When your temp/exposure is near where you calibrated, these will be green. As you get farther away from the calibrated setting, the green T or E will turn yellow, then orange, then red. Usually you are safe when it goes yellow, but orange and red mean you should probably get the Temp or shutter back closer to the previous calibration, or you should black shade to the new temperature/exposure.
Click to expand...

thanks kyle !!


I just read the RED page about black shading and seems to mention only spotty colored noise .....
would you guys say that the black shading fix Big spotty , colored noise ? or noise level in general ? as i said i got few jobs (as colorist ) where images where very noisy even in daylight at 800 iso , it was not weird colored noise it was just noise and i wondering if you think is still due to black shading ...

thanks
g
 
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