Grain

[Austin White]

On a recent shoot I noticed some serious grain issue. Wanted to pick some peoples brain on it and tell me what I did wrong? and not have it happen again.

 

[Nick Morrison]

Could you post R3D?

 

[Roger Viloria]

Did you use a Motion Mount?

 

[Austin White]

Could you post R3D?

Please hold. Uploading now!

 

[Austin White]

Did you use a Motion Mount?

Yes!

 

[Austin White]

https://drive.google.com/folderview?id=0B5h5dC__mtTkd19laFA3RmUxNjA&usp=sharing

Should be done in a few mins. The whole 30 seconds is scary grain.

 

[Roger Viloria]

Are you on Dragon or MX?

 

[Matt Ryan]

https://drive.google.com/folderview?id=0B5h5dC__mtTkd19laFA3RmUxNjA&usp=sharing

Should be done in a few mins. The whole 30 seconds is scary grain.

This is just the RMD, not the R3D...

 

[Mike P.]

It is only 3k.. so you're punching into that sensor pretty hard.

 

[Austin White]

This is just the RMD, not the R3D...

It's still uploading sorry about that.

 

[Austin White]

Are you on Dragon or MX?

Epic MX # 07408

 

[Austin White]

It is only 3k.. so you're punching into that sensor pretty hard.

I have 4K clips the same way? Do I just need to shoot 5K the whole time?

 

[Matt Ryan]

I have 4K clips the same way? Do I just need to shoot 5K the whole time?

No, just don't underexpose and bring up the low end. It looks like you pushed the shadows in that first shot (until I can check the R3D). This will always create noise. You want to do the opposite, expose to the right, and bring the low end down in post.

The lower you go resolution wise the more apparent the noise will get... This shot looks mainly like chroma noise though (Color noise) which could be from the motion mount.

 

[Roger Viloria]

This noise pattern is from the motion mount. Do you remember the setting on the motion mount?

 

[Austin White]

This noise pattern is from the motion mount. Do you remember the setting on the motion mount?

ND only

I blieve 1/8 maybe higher.

 

[Austin White]

The clip is up.

 

[Bob Gundu]

The clip is up.

Holy smokes. You could have trimmed to a few frames! (1.27GB)

 

[Austin White]

Holy smokes. You could have trimmed to a few frames! (1.27GB)

Haha I wanted them to get the full effect!

 

[Roger Viloria]

Anything between 1/3-1/16 still is very acceptable ND that shouldn't be too noisy. I recommend to use the motion mount more for the square/soft shutter effect and keep ND to minimum value

 

[Matt Ryan]

Noise looks fine to me. I was right in that this shot is grossly underexposed and you were pushing it pretty hard. At proper levels it looks good.

(Right click and open in a new tab to view at 100%)

After viewing your file my initial assumption was correct. The shot is quite a bit underexposed. At 800ISO the majority of the image falls below 60% and your highlights don't even touch 80%. Next time expose as far to the right as possible without clipping. As you will see your noise bar is pretty full which is an indicator if you lift the low end you will have quite a bit of noise... For the chroma noise (colored noise) use the Denoise slider in RCX. I bumped it up to 6 and it did the job. Make sure your blacks when coloring get at or near 0% or you will have noise in those areas with the noise bar raised.

Also, you had some funky settings like contrast, saturation, and brightness a bit wonky. I'd recommend staying away from those controls and making sure they are at default values. 99% of the time those sliders will kill your footage. Try to go Redcolor 3, Redlogfilm, and use the ISO slider, and Curves to set your levels and create contrast. Then use the post saturation at the very bottom if you want to boost the colors.

In saying that, I hope this all helps!

This is with the blacks pulled down to proper levels for your exposure. If you open up and give the sensor more light you will have more room to play with on the low end.: