Jump to content


Photo

noise in grading prorez444 in base ight


  • Please log in to reply
1 reply to this topic

#1 Ram Shani

Ram Shani
  • Basic Members
  • PipPipPipPip
  • 735 posts
  • Cinematographer
  • isreal

Posted 12 May 2014 - 01:37 PM

hi

i am working on feature film which was shoot with alexa 2k prorez 444 log-c

 

we are working in a pro post house with base light and 2k projector

 

the files from the alexa are very very noise spacialy the red channel!!

 

it's in day ext. and day int. scene

 

same scene it's more present the the other

 

any idea?

 

we are lost!


  • 0

#2 Elliot Rudmann

Elliot Rudmann
  • Basic Members
  • PipPipPip
  • 208 posts
  • Other
  • Chicago

Posted 30 May 2014 - 11:54 AM

Hi Ram, 

 

Have you looked at the files outside of the color correction suite with a basic LUT (look-up table) on them? Were the images underexposed (leading to extra noise)? Did you shoot with a high-ISO? It's hard to diagnose the issue without seeing examples from the RAW log image and color corrected images. 

 

As a baselight colorist, I have seen Alexa get a little noisy when it's underexposed and brightened up in the color suite, or when the operators lift the ISO sensitivity to shoot in darker areas. 

 

I know this is a late response, but hopefully you've figured out what happened. Good luck!

 

-Elliot


  • 0


Broadcast Solutions Inc

CineLab

Technodolly

Metropolis Post

Glidecam

Media Blackout - Custom Cables and AKS

Rig Wheels Passport

Abel Cine

CineTape

Gamma Ray Digital Inc

Aerial Filmworks

FJS International, LLC

The Slider

Visual Products

Paralinx LLC

Willys Widgets

Opal

Ritter Battery

Tai Audio

rebotnix Technologies

Wooden Camera

FJS International, LLC

The Slider

Paralinx LLC

Gamma Ray Digital Inc

Ritter Battery

Rig Wheels Passport

CineTape

Opal

Glidecam

Visual Products

Technodolly

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

CineLab

Aerial Filmworks

rebotnix Technologies

Tai Audio

Wooden Camera

Metropolis Post

Willys Widgets

Abel Cine