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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 :)

Epic w very big noise

A

Aleksandr Frayman

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hi! My new Epic w seems strong rustles, even than my BMD ursa mini 4.6 is more. After Epic-W purchase I calibrated a sensor (a car calibration). And even on the 800th iso noise is visible and if I make for 1200-1600 in general a lot of noise. What do I do not so?
 
Hi there,

One of the best ways to resolve these things is to post an r3d snapshot if you'd like people to help you.

David
 
I would not describe this image as noisy, though there is a bit of noise in there.

And do remember you are using a camera that doesn't apply any noise reduction to the raw image.

 
Phil Holland said:
I would not describe this image as noisy, though there is a bit of noise in there.

And do remember you are using a camera that doesn't apply any noise reduction to the raw image.

Click to expand...
Hi Phil! Yes, I know it. But also in Davinci noise reduction in the RAW settings isn't applied. Why? I don't know. And it spoils the image, at other users I didn't notice such problem. Also, eyebrows always look bad why? I also didn't see it more at anybody. Whether everything is correct I do? My settings in the camera are that.
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FYI, it doesn't matter what your colour settings are when shooting. It is all RAW meta data that can be adjusted and changed. Only thing that matters at capture is exposure.

Also, how are you viewing your footage to judge noise? Are you viewing at full quality in Redcine?
 
Bob Gundu said:
FYI, it doesn't matter what your colour settings are when shooting. It is all RAW meta data that can be adjusted and changed. Only thing that matters at capture is exposure.

Also, how are you viewing your footage to judge noise? Are you viewing at full quality in Redcine?
Click to expand...

I work in Davinci Resolve and unfortunately for some reason not one setup of noise reduction don't work there (for me of course the license). In Redcine I also don't see a difference. Why?
 
The Denoise in Redcine doesn't really eliminate noise. If it does have any effect it will minimize some chroma noise. The DEB function will work better for removing chroma noise. In any case, I think your image actually don't need noise reduction, but thats just me. Also, to see the effect of DEB in Redcine, you need to view at least 100% and full quality.
 
Bob Gundu said:
The Denoise in Redcine doesn't really eliminate noise. If it does have any effect it will minimize some chroma noise. The DEB function will work better for removing chroma noise. In any case, I think your image actually don't need noise reduction, but thats just me. Also, to see the effect of DEB in Redcine, you need to view at least 100% and full quality.
Click to expand...
I always do everything in Full quality, my computer allows to work with 8K without problems.
 
I wish I was at my computer right now to get an example, but even with full debayer, the preview window in Resolve looks noisy as hell, so bad that I can't even make good judgement calls on ISO levels, and second guess myself on how bad it looks in preview. However, once rendered out, it's glass clean... I don't get it, but that could be it's own thread tbh.
 
are you running the latest firmware? Did you run a blackshade after installing the new firmware?

I also concur, I do not consider your image to have unacceptable noise.
 
I wouldn't say your shot is noisy at all, esp when you consider how underexposted it is.

You rated it at 800, but your histogram is way to the left.

Proper exposure on your clip would be about 6000 iso, which is almost 3 stops higher.

All things considered, I'd consider your very little amount of noise to be pretty impressive, if anything.
 
A very general rule.

In low light situations rate at 250. Outdoors in bright sun rate from 800-1600. Seems backwards but higher rating helps protect highlights and lower rating helps ensure you get more light on the sensor.

More light = less noise.

Also use the left goalpost in the histogram. That is the noise meter. It will tell you, while you are shooting, how many pixels are in noise, you can go about 3/4 of that before really perceiving noise.

One thing is for sure, low key, no light images with slow lenses (2.8 is slow) will get burn you if you are not careful.

David
 
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