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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 :)

red noise footage

J

Jean baptiste

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HI
we have most the use to shoot with GH4, C100 and C300 and sometimes we shoot with red epic. We usually book a guy that perfectly know how to use the red epic and make the choose on the settings. But for the last shooting, guys was sick so we were forced to do this job ourself.
We shooted 4k at 25 fps shutter 50 iso 800 and with varial ND filter

I am not really happy with the result we got, we shooted with rokinon lens at f 1.4 so I guess this was first mistake because result is not really sharp, I thing it will be better to shoot at f 4 somehting like this? So when we crop into the image, the result looks not really good and image have bad quality. It' s like a pixelate image.
On previous shooting we made with epic, the result was much better, even if we cropped on the image. Second point we have lot of noise on the black color ( especially on the black t shirt and black pant) so we were forced to denoise nearly all the video we shooted. we have noise on the video we shooted inside and outside so I am pretty sure we did wrong setting on the camera

we shooted inside a building with 3X big HMI light around 1200 watt + diffuse so we normally should have a very better result. It was a really big and sunny show room with really big window so it was normally bright enough

I know we forgot to make a black shading before to start so I guess it can explain a part of the problem.

In the next months we will buy our own red camera, so I really would like to know how to perfectly use this camera, I have searched tutorial in internet without succes,

the only thing I found was:
https://www.youtube.com/watch?v=pqTFBd84z54

so do you have link that explain how to use this camera ? or can you tell me how did you learned how to perfectly use this camera ?

I know well how to use a GH4 or a C100 but red seems to be a bit different
I will send screenshot picture if needed

thanks a lot for your help ;)
 
HI

thanks for fast reply and sorry for my bad english...

it was red epic we rented, it's a MX

I didn't expose using the false color mode, just checked the histogram, and tried to have the curve centered but I am not sure it's the good way to use
I will have a look on the link you added
thanks a lot ;) for your help
 
Remember Raw to the right. Or in the case of the MX expose at 320/509 ASA to make sure. The thing is to balalance the blown highlights and knowing where the noisefloor is. On MX it's best to take highlites to white without clipping ( no traffic lights on, then check exposure tool and look for areas that need a little fill. They will be purple. Like film Red footage requires
Proper ratios to get optimum results. The thing that's a little hard to wrap your head around is that bright exteriors will be cleaner at 800 ASA and dark scenes will look cleaner at lower ISO but that's the way it works
If you can post R3D we can tell you how far you were underexposed
 
When you shoot 4k on a 5k sensor (or 6k sensor for that matter) you window in on the image and you also magnify noise. The best practice for the cleanest images on the MX sensor is to shoot 5K and once you're done editing and grading, export to 4k.
 
thanks for answers, I have started to check each link and will check them carefully.
Someone have a video link that perfectly show how to use the histogram?
thanks a lot ;)
 
Any news?
it's impossible to find tutorial that show how to correctly use the histogram. Second question, what's the iso level you recommand? last time we shooted at 800 iso because people said this is native setting, but I am not sure it was the best choice
thanks
 
thanks,
for sure I have read this, thansk but I 'd prefer to check a video tutoriel, it will be more easy to perfectly understand how to use it correctly
so if somebody know a good video ;)
thanks
 
Jean baptiste said:
thanks,
for sure I have read this, thansk but I 'd prefer to check a video tutoriel, it will be more easy to perfectly understand how to use it correctly
so if somebody know a good video ;)
thanks
Click to expand...
https://www.youtube.com/watch?v=htqrTTSZp-M

There are lots of tutorials on youtube:
https://www.youtube.com/results?search_query=histogram

I prefer to use False Color's Video mode to see exactly what parts of the frame are under/over exposed. The histogram just shows a graph of the total pixels number of pixels that are light or dark, not exactly where the dark and light pixels are.
 
Correct me if I'm wrong guys...

Its true that 800 is the "native setting", but this only means it gives the largest dynamic range. It is still noticeably noisier / grainier than lower ISOs . ISO 2000 on the epic dragon is way too grainy for my taste, but I believe it is the "native" for that sensor.

And yes, RAW to the right for sure. It should NOT be in the middle. It should be as far to the right as possible WITHOUT going off the chart.
 
what about iso? you use 800 iso for each shoot? inside outside? sunny, rainy? with light, without light? all the time with 800 iso?
what do you hear about RAW to the right? I have read this several times?
it mean the mountain on the histogram should be as close as possible to the right side ? ( and for sure we shouldn't clip the right goal)
thanks to confirm
 
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