How to expose correctly using the Atomos Shogun – Cine modes

In this lesson we’ll learn how to expose Cine modes in the Cinema color space using the Atomos Shogun. I’ll only be using Cine1 as reference, but this applies equally to all modes.

The test is similar to what I used to explain the Picture profile modes, and I’ll be using a DSC Labs OneShot as reference. The lighting is pure halogen, custom white balanced at 2900K. The light is from the left that is why there is a small but negligible fall-off (the real world barely has zero fall-off).

The spot meter in the camera was measured within the large grey patch for exposure. Exposure settings are available in the first image.

Here are the results (click to enlarge):


What I see:

  • The waveform tells us middle grey falls on 50 IRE, which is perfectly fine for Cine modes. Remember, Cine modes are in full swing, so middle grey will fall on 50 IRE.
  • The Zebra at 50 shows up perfectly on the grey patch.
  • The false color tool should be showing ‘medium grey’ on the grey patch, and it does.

How to expose for Cine modes using the Atomos Shogun

Here’s the easy way:

  1. On the waveform, keep middle-grey at 50 IRE, and keep your white below 100 IRE for full swing.
  2. Make sure the RGB parade lines up – this is a quick indicator of white balance issues. You can use the vectorscope as well, but you need a clean patch to study and that’s not always practical.
  3. If using the false color, middle grey should be ‘medium grey’, and Caucasian skin could be pink or even light grey.
  4. The Zebra should be at 50 IRE for middle grey. For blown highlights, keep the Zebra at 100 IRE.

Click on the link below to the next lesson or head over to the main menu (above). If you need help with something, feel free to send me an email. I’ll try to get back to you as soon as possible.